Code Break 8.0: Variables with Yara Shahidi & Fuzzy Khosrowshahi

hi and welcome to code break my name is

Hadi and across zoom Facebook live and

YouTube live we have tens of thousands

of people joining us

so yeah they were hoping to build the

world's largest live interactive

classroom with so many students at home

my team at code.org invites families

everywhere to join us for a weekly dose

of inspiration community in computer

science I'm here with my daughter and

sidekick Sophia she's a budding computer

scientist and I'd like to introduce our

first special guests the amazing actress

and activist Yara Shahidi yeah hi how

are you and we're you calling us from

I'm good I'm calling from LA where I am

with my family quarantined and how are

you spending this time with everything

closed I mean it's been a mixture of

keeping busy while learning and then

lots of family activities one of my

brothers made a podcast in his free time

so it's really just been trying to stay

creative and you've been in school that

school just finished for you yes the

other day literally mmm 24 hours ago

very proud my last papers and when

you're you you're sitting in Harvard

where you're even yeah I'm a sophomore

so I'm now a rising junior awesome in

Yara's do many thoughts you want to

share with students who like you have

been studying at home and are probably

struggling with staying motivated in law

school no I know I know and understand

because not only am i doing it both of

my brothers who are in middle and high

school have been distance learning I

know it can be difficult I think the way

that I've done it is I've tried to

create my own goals for myself because

it's sometimes hard to stay motivated

with their goals so whether that I mean

something super simple I am a secretly a

grandmother so whether that's

knowing that I get to crochet when I

finish an assignment or get to go learn

a new skill then that's usually what

inspires me to get through whatever I

need to finish it well I'd like to

introduce another special guest fuzzy

Kawasaki fuzzy how are you hi I'm doing

great

how are you I'm great at fuzzy is the

inventor of Google Spreadsheets and

where are you calling us from I'm

calling from beautiful New Jersey

overlooking New York and probably the

question everybody wants to know what

kind of name is fuzzy what kind of name

is fuzzy it's a very it's a very popular

Persian name no it's a nickname my

soccer coach decided to call me fuzzy

and it's stuck and how will you serve me

well because everyone who meets me

thinks oh what a what a funny name and

it's a good conversation starter all

right well we're gonna start today's I

guess conversation with the computer

joke of the day and so he has I've got a

little sound machine that uses because

we have so we're kind of low production

here idea you wanted to tell fuzzy and

you are on your joke of the day okay

what did computers do just before going

to bed what did they do spreadsheets

Duke just for fuzzy thank you now let's

meet our live audience we're gonna

switch to gallery view so we can see the

names put on the faces of all the

students are joining us on camera can

everybody wave and say hello everybody

I'd like to also have us say hello to

the rest of our audience we can't see

the majority of our audience but I'm

gonna screen share as they were joining

this we give them a chance to put where

they're from

on a map so here's our map oh wow Yara

and fuzzy I don't know if you expected

to have people

from all over the world but time zones

very far away from here

yes great look that everyone's tuning in

yeah

a lot of you yeah it see there's people

as early as 6 a.m. 7 a.m. 1 a.m. really

from all time zones for joining in that

for this live classroom which has really

just been an incredible thing to see

happen during this pandemic so also just

you know these students are they range

from age 66 260 from all grades there

are also different levels of experience

some beginners some intermediate some

advanced if you're advanced please be

patient with us we're gonna start with

the easy stuff and if you're a beginner

please stick with us through the whole

classroom even if it goes too fast for

you hopefully you'll soak something out

also if you have questions during the

show for either of our special guests or

for me

you can visit code.org slash questions

to submit your questions today we have

three parts in our episode we're gonna

talk about variables today and we're

gonna learn about variables first in an

unplugged way then about using variables

in games and lastly about using

variables and apps valuables are one of

the most important things in computer

science but before we move on to today's

lesson we want to welcome some students

to demo their creations to our special

guests last week's challenge was to make

your own flow chart or to modify the

apps we made for you the magic 8-ball

app for the DECA stroller app and each

week when you share your creations we'll

invite you to show them the best ones on

next week's episode so Yara and fuzzy

you ready to meet our two students from

last week I'm so ready

alright so doc who's from India

submitted a dice roller project this

week doc we're gonna unmute you can you

tell us more about yes are you there

yeah we're from India hello hi their way

from India India let me screen share

your app and then you can tell us more

about it it's a very nice hat by the way

it's actually no there are two variables

first one is first variable the first

variable we put a straightforward

equivalent to random integer second one

there if there is variable which we put

equivalent to random number which which

it picks from 1 to 10 as as we click

dark then there is number come whether

it comes 1 then there is equal to 1 6

then it comes to then earlier we press

alia then it comes 5 so this number 6 is

more than 5 result Dutchman's so it's

like check not only we made a dice

rolling after you guys created this from

scratch again click then action alia and

shows who wins aliens then click again

click again click ducks again here

earlier and result here you go duck she

wins again there are two numbers equal

they are two numbers equal then mesh

right then

the ties I got it and it's all your data

disturb my sister all right very cool

the second app we have is from Abigail

unfortunately Abigail's audio isn't

working so she can't speak with us

Abigail's from Vermont and she took our

magic 8-ball app which was a very very

simple app and made something much more

complicated she made six different or

seven different six different games only

one Yara or fuzzy are there any of these

you want to try Yara go ahead I play

tic-tac-toe excellent I'm not not that

Jerry tic-tac-toe is the one she hasn't

finished yet

okay it's the only one I tried before it

doesn't work yes you are the truth or

dare yes

okay let's try two three all right Yara

do you want on truth or dare I'll do a

truth all right let's go Sofia you want

to click I'm nervous oh gosh

it happens okay just because you're

alive of 10,000 people you have a

question from Yara so there's another

one of these apps is the cursor maze

check this out Sofia has wanted to play

this all morning so this is a cursor

maze app where you need to control the

mouse to get from the start to finish

without touching any of the blocks so

she has to move the mouse very carefully

and it gets harder than easy yeah and

it's really simple after this I don't

know this is one out of six apps and

then you have to click next level right

this is fenomena Thank You Abigail for

sharing that app Thank You Abigail yeah

thank you

you want to play an applause sound for

both Abigail I'm - for their apps yes

sorry you were on mute alright so for

today our word of the day is variable a

variable is a way to store hold

information that can change you may be

familiar with variables from math class

like in that class when you say X equals

5 X is a variable and it holds the

number value 5 but variables and

programming are different in two key

ways first of all and programming and

computer science valuables can change so

X can start like a 5 but then it can

become a 6 or a 7 or an 8 it doesn't

stay the same the second thing is

valuables and computer science can

change can hold many different types of

values they can be numbers they can have

words or even more complicated

information now why would we use a

variable anytime a computer program

wants to keep track of anything because

it's the variables basically act like

its memory like to remember the score

and a theme or to remember the names of

the players or anytime you type

something in an app the app remembers it

in America now we're going to see

variables in action with health

Yara so we're gonna switch to gallery

view to see all the students on the

screen and I want every student on the

screen including fuzzy and Yara to all

the variables your basic variable and

each variable has a name so yeah we can

see your names on the screen so Yara

what's your name

it's Yara Yara so that's the name of

your variable so each file gets assigned

a value so I'd like you each to pick a

number between 1 and 10 and to hold up

your number up on the screen so we can

see all the numbers assigned to all the

different variables

alright so Yara what number are you

ships

storing seven you're seven so you could

say that Yara equals seven so now Jana

I'm gonna ask you to change your value

and so when I do you can like shimmy

your hands when you get a new okay

everybody else keep your numbers up and

I want to make a number that combines

the numbers in the variables Owen and

Evelyn so we're gonna highlight Owen

that's Owen Owen what number are you

showing that's a two and then Evelyn and

Evelyn I think is showing a three so

y'all I want to say Yara equals Owen

plus Evelyn oh so you're already a five

you changed from a seven to five so when

we say yarn ankles Owen Plus Evelyn you

set one variable to the value of two

other variables now Owen and Evelyn can

you both change your numbers pick a

number between one and five a different

number all right and Yara can you

reevaluate the are equal Owen Plus

Evelyn all right so you see now Owen is

a four and Evelyn is a 2 so Y became a

six now I want to ask Evelyn your number

changed did your name change no no and

that's that's right because with

variables the value of a variable can

keep changing a computer program can

change it all the time then

the variables stays the same all right

you can put your hands down we're gonna

do something totally different now we're

going to be variables in a different way

what we're going to do is show how

variables health computer programs

remember and to do this we're going to

have yara act like a computer program

for ordering a food basket okay

yara since you're an actress you're

gonna act like a computer who can't

remember anything without saving

information and we want a great role yet

mm-hm

we we wanted to act like you have no

memory without the help of your

variables and all the students you see

on screen are gonna be your variables

they can save information for you is

that sound okay that sounds great right

did you remember anything I just said no

actually you need to remember what I

said but once you're running the

computer program you should forget it

all great got it Sofia here is gonna

order a fruit basket from Yara and Yara

each time Sofia asks for new fruit to

add to the basket I want you to ask one

of the student variables on screen to

save that piece of information by

writing it down so you can say for

example Naomi please save an apple and

Naomi will write it down and while

you're doing this

Fuzzy's you're going to be a counter

variable I want you to start with the

number zero and then each time Sophia

asks for a new fruit add one to your

number so you'll show how much fruit

Sophie has asked for I've been packing

are you ready yeah all right Sophia go I

like apple please stam yo can you

remember an apple it's the same I was

going to write this down next I like an

orange Seth can you do me a favor and

remember orange and write it down Seth I

want a pear a new shot can you please

remember pear for me can I have a grape

please Naomi can you remember grapefruit

for me please I'd like a Kiwi - all

right Serena

will you write down QE for me and lastly

I would like a banana okay Amir can you

remember banana for me please all right

before we make this fruit basket how

much is this fruit order going to cost

let's say it's $2 per piece of fruit how

much should Sophia pay let's do a poll

from our audience all the folks on zoom'

were not on camera you can look at fuzzy

the counter and we are going to ask how

much does Sophia's fruit basket cost is

it $12 or is it two dollars per fruit or

is it two times fuzzy or is it all of

the above all of the above God said

don't tell us the answers people are

actually filling out the poll but all

right almost half the students have

already voted fuzzy sort of gave away

possibly gave away the answer might not

be right we'll see

all right let's share the poll results

of what students guessed

all right before it was almost a dead

heat but we have now 70% of you guessed

all of the above and that's correct so

the food basket is gonna cost $12

because it's $2 per fruits and Fuzzy's

been the food counter counting how many

think Sophia's ordered now Yara dear

remember Sophia's fruit order I don't

I'm not sure anybody remembers it but

since you're a computer program you

don't need to have your own memory your

variables save that for you so if you'd

like you can now ask your variables to

show their information up on the screen

so you can see it yes please well my

variables share what we've stored so can

all the variables hold up your pieces of

paper so Yara can see see an apple pear

grapefruit keep holding it up so y'all

can you now from what you see make the

fruit basket that that's Sophia ordered

thrust yes

I see an apple a pear a grapefruit okay

so I have some fruit with me I have my

apple have my kiwi I'm going to draw a

pear I have my grapefruit and I'm gonna

do a nice round pear for everybody

artist so yo can you now hand the bowl

of fruit to Sophia together we want to

test out a really new zoom feature

called zoom fruit delivery gladly

Sophia thank you everybody for the

variables for the healthy determined

helping our food delivery program

remember her fruit order so to recap

first we use variables to store numbers

and we showed how the values changed and

next we use variables to store text so

the computer er could remember how to

prepare a food order that we're gonna

explore more about it valuable soon but

first let's learn a little bit more

about God so Yara you're our third

special guest to play our lightning

round game we're gonna put 60 seconds on

the clock and Sophia's going to keep

score actually on an app she Scott is

gonna keep score and and your goal is to

get through as many questions as

possible and beat our current score of

nine nine questions which were answered

by Sal Khan so you want to make the

comments but also make it fast

I've got it all right Sophia go umm

country you have all you want to visit

but haven't Greece advocated what did

you want to be when you grew up a

historian favorite drink um my go-to

black tea my side ask something you

can't ever eat no matter how many people

love it sardines the last person you hug

know

living with you not living with me oh my

goodness

my friend Jacqueline 30 seconds your

favorite smell um I love just any

kitchen smell I love this smell of the

kitchen being used because it means that

we're about to eat

what were your hobbies when you were a

kid I loved everything from exploring

and I was in karate and I would rock

climb what was her score seven so that

was variable so close thank you so much

and we're gonna play a little applause

sound all right so I have a few more

questions for both fuzzy and yah for

each of you how did you become a

standout in your field and especially in

a field for both of you that has a lack

of diversity and representation you want

me to go well yeah go ahead fuzzy so I

don't think it was intentional when I

I've always thought that diversity was

very important and I'd like to I tried

to work in companies that were very

diverse I find that having working on

products that are user facing it's

really important to build stuff that a

lot of people can use so I try to

surround myself with a lot of diverse

people and that would be able to build

things that you know have have different

viewpoints one of the things that I

remember for example with sheets is

having someone on the team that was

basically hearing-impaired originally

impaired helped us empathize more and

build products that met the needs of

visually impaired more so diversity was

really important for us there and how

Hollywood doesn't have nearly as much

diversity as a lot of people who wish it

did yeah um well I'm grateful because I

got into this because I love to read I'm

sorry till I actually didn't watch much

television until I was 13 we'd watch an

hour

on Saturdays mouths about it so it's fun

for me to be a television actor who

didn't watch TV but it was because I

love telling stories and so a lot of

what I do is when I'd get a script or

have to go audition it was really about

what story are we telling and I think

similarly to fuzzy I found places in

which diversity was really valued so

whether that be on blackish or even now

I'm grown ish it was something where I

didn't even have to be a conversation

because everyone knew how important it

was not only for a great work

environment but just for a great final

product - and we've had the best time

and now we are in the role of making

television and that has been so much fun

because we get to bring to life stories

that I'm just discovering or learning

about and we're constantly meeting new

people who have incredible things to

share and why do you think it's

important to increase representation of

women or people of color and fields such

as technology it's always been really

important to me I had the privilege of

going to an all-girls school and I

remember what that did for me because I

at no point did I process like oh the

sciences weren't meant for me or stem

wasn't meant for me because I was

surrounded by people who proved that it

was but I think just to Fuzzy's point we

need diverse teams of people in order to

make products that reflect what our

world looks like and I think so much so

many people have so much to contribute

that it's important that we decrease the

barriers that just stop people from

being able to contribute study computer

science while you're at Harvard or high

school either does it's so funny that

you say that I'm about to sign up for a

class for my summer class I haven't

decided yet

I have friends so a lot of my actual all

my girlfriends I think I've taken a

computer science class and I'm beyond

I'm the odd person out right now so I'm

taking more suggestions I'm speaking of

diversity by the way one thing that's

unique is all of us right here Sophia

myself fuzzy and Y are all for Iranian

Americans the way nice t-shirt huh D

yeah I'm wearing an image

t-shirt because fuzzy and I are also

immigrants as well

Oh Thank You Evelyn for showing a heart

so yeah we have some questions from our

student panelists as well one of our

producers at Kyra is going to introduce

these students hi ara so we have two

questions one friend a ha who has a

question about girls and achievements

and they hum going to onion you what

suggestions do you have for girls to

stay confident in whatever field they

choose and to become leaders in their

community yeah hi I know that's a

wonderful question I think what I've

always relied on is I always say my

support network and so for me that's my

family I come from a really cool

matriarchy of women but that's also my

chosen family my friends my professors

and teachers and the reason I say that

is that there's so much happening in the

world that often times you can run into

barriers that try and convince you that

this is an ear space but that's why I

rely on the people around me not only

for that confidence boost but to

constantly get better at whatever I'm

trying to achieve but I think having

those people around me have helped me

through every step of the way

and to always be open to learning thank

you so much and we also have our last

question from Amir so Amir I'm going to

unmute you he had a question about

achievement yeah what drives you to

achieve your goals and motivates you to

never give up

that's a great question Amir and I've

been thinking about that a lot

especially now that we're all at home

and life looks very different right now

but I think what's been important for my

entire family are finding ways to

continue to be of service to my many

communities not only the communities

that my family are part of being black

in Iranian but just the many communities

that I think support us and so sometimes

that small like on blackish being able

to tell really great stories that

hopefully spread a point of view and

sometimes that's trying to figure out

how I can use an opportunity to give

back and how I can support other people

but that's always helped motivate me

because otherwise if you're not doing if

you're just doing it for yourself

sometimes it's hard to find the

motivation but when you do

for the betterment of so many people

around you then I think that's what

convinces me to get up when I'm not

trying to accomplish something to go to

go do it thank you you're on thanks Amir

yeah thank you thank you so much and

Yara thank you for joining us today to

share your story we're all a part of

Yara soon so can we switch to gallery

view for the audience so all of our

students can wave goodbye to Yara and so

if you can you play an applause thank

you thank you my first computer science

class thank you so much thank you

alright fuzzy let's chat a little bit

more though bye bye Yara so fuzzy we're

gonna chat a little bit more about your

background and your work at Google with

Google Spreadsheets while fuzzy and I

chats if you have questions don't forget

to send them in at code.org slash

questions you have about two minutes if

you want to submit a question so fuzzy

how old were you when you began learning

how to code and how did you get into it

what's your story about how you got into

this I don't even remember how old I was

because I was a as you can tell I'm I'm

not a young young young one like you all

so back then I was actually history

major in college and when I graduated I

didn't I was having a hard time finding

a job so I ended up selling life

insurance for a while then real estate

that my wife said wouldn't it be great

if we open up a Subway sandwich shop and

worked all day and all night together

and I said sure we tried that for a

while it wasn't only it wasn't until my

30s when I actually started really

coding I had a job in the banking

industry and was coding there and

teaching myself most of the coding and

that's when I came up with the idea of

taking sell spreadsheets and converting

him into Web Apps and the idea with the

help of a lot of amazing people we sold

that product to Google and it became

Google sheets so it wasn't like I wasn't

coding as a young kid like everyone here

that's really kind of what most people

envision that people

start companies and sell them you know

our whiz kids who learn when they're

like really young and then sell their

startup when they're like right out of

school or something but you'd between

being an insurance salesperson and real

estate sales persons the sandwich sales

person make great sandwiches to make

great sandwiches yeah it's pretty

amazing that Google Spreadsheets was

basically an acquisition by Google of a

company made by a sandwich style

sandwich shop owner and by the way if

you think about it there's a connection

between spreadsheets and our earlier

activity when we were all in a grid the

students were in a grid each one of us

was a variable just like a spreadsheet

stores a value in each of the cells in

its grid and each cell in a spreadsheet

has a name like a 1 or B 1 or C 2 just

like a variable and in fact I often tell

people if you've ever written a command

in a spreadsheet using a formula like

saying this cell is going to be the sum

of this and that you've written one line

of code and that's how you can start

learning computer programming so now

we're gonna go into the second sentence

of today's class which is learning about

how to use variables and games and so

fuzzy Sophie and I are gonna use we're

basically gonna use ku dog to modify a

game using validus and I'm gonna change

the screen share to just show code or

game screen just one second

all right can you see my screen yes I

can it's wonderful thank you so for

those of you who are not familiar we're

in co.org sprite lab on the left-hand

side is where the code will be running

where we make our game on the right hand

side is the code for this game and

there's all these little commands and

here in these different drawers that we

can look at now this code is already

been written and I'm not going to run

through how it works what it does is it

creates a bunch of these little players

called sprites on the screen so it's got

this little alien who's a good guy and

then these purple aliens are bad guys in

these coins and when you run up the Run

button all these things float around and

you can use the cursor keys to move the

good alien that we control you can also

use the cursor keys on a keyboard the

arrow keys move the good

the good little alien but what we wanted

to do is when they're good little alien

catches a coin we want to count the

score so Sophia you're gonna do that

using valuables and so we're up here and

it says when a coin has been gotten by

the good alien so what is the first

thing we want to do so if you go into

the sprites menu and the first thing you

want to do is remove the point so bring

out the remove block and then take out

or change that to the coin actually no

don't change that because that's gonna

remove all the coins take that out take

out this little block and go into the

sprite menu and choose this sprite

because if each removed the coins but

all of them would go but you want to

trim this just this right and now when

you do this

that's right that you get will disappear

but what we also want to do is increase

the score and at the start of the game

we created a valuable score we set the

score 2-0 so now what I want you do is

to go into the variables section and set

the score see it's a set score to

personally not set score to change score

change and then clear that I and change

it to score and so we're gonna change

the score by one you want to change it

by one or by two let's leave it by one

now that's good to stuck me when I was

the counter exactly that's just like

here now so if you hit the Run button as

you're going around you can control the

little you couldn't roll this little

thing and it's catching these little

coins and the coins are disappearing but

we're not seeing the score so what we

need to do is we actually need to

display the score on screen so so if

they go into this area of text the

section that says text and bring out the

print button and in there you want to

type score but we want to combine the

score the word score with the value in

score so go into texting

and bring out this join block and

dropped it in there and inside the print

instead of a little score block yeah and

then join the the word score with the

quotes around in the Kulin and then in

the variables bring out the value score

so now it's going to tell the story

which time we get one of these things so

now if we hit run I'm gonna play this

this time I can run around and catch the

coins and see I got a score of one no

score to the score of three and so on

now I want to use a different battle it

looks fuzzy fuzzy you can also count

these as well what I want to do next is

actually make it so that our player gets

smaller and smaller and the points get

smaller and a harder to catch as we go

along so what we need to do is go back

to the start of the game and create a

new variable we're going to create a new

variable for the size of these so go

into variables and say set I to and

click on the eye and say rename this

variable so we're going to change that

to size the bargaining is going to be

size all right and we're gonna set size

can you drag out the number zero and set

the size to 50 all right so this is

gonna be the counter for what our size

should start to ask but what we want to

do is now every time you capture a coin

you want to change this change all the

sprites to that size so now go into

actions actions and see where it says

set size 250 bring that out and so when

a coin is caught change this coin size

but instead of choosing 50 you pull out

that 50 and then go into very ease and

pull out the size value now size is

going to keep this size at 50 so before

we do that we actually want to reduce

the size as well so go into variables

again and save huge

change I by and assuming keep changing I

change the size so we want to make this

eyes smaller it started out as 50 if we

reduce it how much do we want to change

it by how about by negative negative 10

so it'll start us 50 then become 40 then

30 and so now we want to do this not

just for the points let's make

everything smaller so click this block

and hit command C to copy it and the

command V to paste it and I'll put that

in there so not only the coins change

sides make the good little alien change

size and then click that whole block

again and hit command C and command V

the dark side purple aliens right now

try they're doing again yeah you're

doing great

oh my God look how tiny you got you're

getting a score it's super hard to see

you anger is not as good as me it's so

these aliens are now size 10 so it's

hard to see them all right that was

super fun

so I'm gonna stop this for a second

mount like all things you make on code

over one thing we can do is we made this

little game and we can share it out and

if you want you can actually I'm gonna

make this a little bit bigger you can

actually scan what we this QR code using

your phones and the app that Sophia made

would then show up you just tap the

little thing that shows up on your

screen and that after we just made this

on your phone to play it so if you don't

play it right now

but instead of doing that right now

we're gonna send this app to you an

email later so you can actually improve

on it more in fact one of the things we

wanted to do is figure out what happens

when the good alien runs into the bad

purple aliens that's something you can

do now before we go into the next part

of our episode actually want to take a

pause and do our trivia questions so

it's trivia attack yourself

so fuzzy we want you to read the trivia

question for today's audience and

everybody of the frosted zum caulk and

answers make sure to read the question

and all the answers and should I answer

it like last time what was the first

computer that had real-world practical

use

was it the ENIAC the Turing machine the

baggage the Babbage calculator or a

human who did the job of a computer

let's see who's the who's ahead looks

like I'm watching the results come in

not everybody else can see them but we

have about half of our audience is

already voted I don't know I don't know

what the image of you voted and this is

a pretty tight one this is tight I don't

know this is tricky so almost everybody

has voted so can we share the results of

people's polls

Wow everyone thinks that more most

people think it was a human so I'll say

straight up the Turing machine isn't

actually a physical machine it's a

conceptual abstraction and the Babbage

calculator was really also theoretical

calculator Charles Babbage came up with

the idea of a computer but neither of

those are actually sort of real-world

practical uses I'm going to give you the

answer be a screen share so just one

second I'm going to share my screen

the ania computer built in 1945 80 some

80 years ago it was 800 square 1,800

square feet of office space it took and

it weighed 32 tons this was the first

modern anumana the first computer with

practical use and used vacuum tubes

instead of transistors and electricity's

and today's phones like Sofia's phone

right here have a tiny chip the size of

a fingernail that's literally a million

times more powerful than this first

computer however this wasn't the first

computer that had real-world practical

uses the first computer as early as 1613

a computer was somebody who did

shooting work like math work like math

calculations and throughout the 1800s

and even the 1900s entire teams of

computers often women would work on hard

problems because we didn't have the

machines yet to do this work and in fact

here's pictures of some of the women who

helped get the man on the moon it helps

America's space program these young

women were called computers that was

literally their job and if you've seen

the movie hidden figures at showcases a

woman named Katherine Goble who's one of

these women these women basically did

the work of now today's modern day

computers and I think that's interesting

because in today's world technology is

constantly improving in a way that

changes jobs and human jobs are being

replaced by machines and the computer

itself used to be a human job long

before we have what we what we now think

of as computers so we're now going to

move to the next segment in our episode

which is using variables and apps and

we're gonna say goodbye to Sofia

I see that and we're gonna welcome my

second sidekick and my son Darius hi all

right Darius ideas so what we're gonna

do is we're gonna make an app that helps

us invent a story it's gonna be a tell

me a story that is really nervous a

little bit a little bit nervous it's

always a little bit nervous to have a

big audience and it's especially nervous

when you're coding in front of the big

audience coding by yourself is a lot

easier because you can make mistakes and

then you can fix your mistakes making a

mistake in front of thousands of people

is definitely different so we're gonna

share screens here we're now in co.org

app lab and what you see here on the

left is the app we're gonna create on

the right is the code and we've started

some of this for you I'm gonna walk you

through this

we're in design mode you can see this

app has a bunch of text inputs where you

can enter a name an adjective a noun and

a verb and when you click this button

it's not doesn't do anything yet because

we haven't written the code for it but

we would like it to do

is to store all this information just

like yara asked the valuables to

remember the names of fruits we want the

this app to remember this information

and then to switch to screen two and to

fill in those different words to finish

this sentence to make a story so this

here is going to be the name and this

year is going to be an adjective and

this year it's going to be a noun and so

on so let's go to code mode and write

the code of what happens when you click

this button let's remember the

information here using variables fuzzy

will you be able to help us doing this

absolutely

alright so darius what i want you to do

is if you look here there's an on event

block is what happens when the story

button gets clicked and what we want to

do is get the text from these things i

store them in baggies and if you look up

top we already have created the values

for the main the adjective the mound etc

so what i want you to do is to go under

the values category of demands and drag

out the x equals but instead of x change

it to your name and you have a small

type of your name and so the value to

put a name go into your controls and you

want to get the value in the text editor

so use the get text block and you want

to do get text the main input alright so

what that's going to do is store that

into that valuable and then what we want

to do this is what's happening when the

tell me your story button is clicked so

what we want to do next is then it's

change the screen so go into the blocks

here know and and find this set screen

button it's near the very bottom right

there the set screen and pull that up

and now we're going to change screens at

screen too and just to remember what

screen to is over here you can click to

in design mode to change screen to so

that's what screen to its and i go back

to

right now once we change screen to

screen - we can set the text so this

text isn't the dispersed label up here

if you can move your mouse above this

these sort of question marks that's

where the name output is going to go so

go up and find the set text block it's

at the top you're doing great date and

set the text for name output right now

it's gonna fill it up with the word text

but we don't want to set the name output

to the text we want to use it about and

our variables let's see what should we

put over there for the variable yeah

this text here or the text I would say

funny no we want to change it to what we

stored in the variable so we're gonna

use your name which was the value that

we remembered oh I see alright so now

let's run this and see how it works it's

okay now hit run so now it's gonna say

let's come up with a story and so we're

gonna enter a name fuzzy pickles random

name for us random name

oh yeah pick darius darius that wasn't

very random

now click tell me a story and so you can

see it says one fine day darius walk

into a blank blank and blank over a

blank it was a truly great day so that's

our first step of remembering what

darius entered but we need to do the

rest of it so we're not going to do this

all typing in the code right now we've

actually written the lines to copy

seduce click show text when you click

show text you see all this code of

JavaScript instead of blocks and if you

go to the very bottom you see where it

has all these adjectives already made

the adjectives and nouns and all these

get text blocks can you select all of

that and then cut it this looks like

really hard it looks like what my code

yes paste it there and then go down to

the bottom again and then all these set

texts

put it again so fuzzy yeah this what

we're doing right now is no longer like

dragging and dropping blocks it's

dragging it's literally and how real

coders work in new texts but one thing

you can notify Z is even though we're

we're here you can still drag and drop

blocks into here Wow

turns out to flex that's kind of neat

and then once we're done we can change

the back to block mode and everything we

copied and pasted is back into blocks

and so now and I'm going to close this

so you can see it more easily so what we

did now is when the story button is

clicked we collect just like Yara asked

Samuel to remember a banana and so in

soda a number of here we're going to

change these variables your name is

going to remember what's in the main

input and a man and what's the name of

this spiral each of these virals

remembers each of these things here so

when we change the screen when we change

the screen in each of these labels we

can set text and we get the values in

the baggages Siderius can you run this

and now we're going to try it out

so let's now come up with this dinner so

why don't you now come up with a name

pick a random one like me you wanna do

fuzzy okay

all right for the adjective fuzzy you

want to pick a good adjective give us a

fun yeah I'll go with funny like I was

putting before funny yeah

which rhymes with fuzzy it rhymes with

fuzzy and then for the third so for the

third for the second adjective well

let's do an audience poll so great

blanket poll so the entire audience can

choose the adjective we use so we can

choose funny braid famous or clumsy I

kind of bet I know what people are gonna

choose yeah we were paying this we were

pretty much certain what everybody is

gonna think is their favor

all right almost all of you have voted

all right so can we share the results

all right the most popular adjective is

clumsy so Darius can you type the clumsy

so steamed funny clumsy now bears can

you pick another now the grocery store

grocery store actually no I don't want

to type all right and then fuzzy you

want to pick another now yeah how about

a puppy happy and then last let's use an

audience choose a verb that ends in D so

can we put up the audience poll so

appeared sneezed jumped or danced and

let's let the audience choose what they

want all right

and can we share the results of the

audience votes all right the winning

answer is sneezed so Daris can enter

sneezed and then tell me a story so one

fine day buzz if you want to read it for

us sure but I'm gonna get all emotional

this is a story my mom used to read to

me when I was a baby

one fine day Steve walked into a funny

arcade and sneezed over a clumsy puppy

it was truly a great day I remember it

like yesterday when she used to read

this to me that's a wonderful story and

by the way fuzzy I have inside

information that your mom is actually

watching this today so Wow so she'll

confirm this confirm this so thank you

so much fuzzy for helping us with this

app and what we're gonna do by the way

is you're gonna get an email with this

app so you can improve on it yourself so

you can make multiple stories there's

multiple changes you can make to it so

for example you can take out this very

last line and replace it with another

variable you can make a second story

that uses the same inputs and you can

let their user to click between the two

story

you can make a longer story you gonna

have this app I'm not gonna use the QR

code to share it we'll send it to via

email I want to then also get some

chance for the audience questions that

people submitted for fuzzy so Akira

our producer is gonna join up again and

then share the questions for fuzzy at

this point I am an expert question asker

overlayer I'd like to think so fuzzy

this one is from Caitlin sea in Wyoming

she said what's at max have you had in

your career and how did you overcome

them what setback that's a great

question

setbacks I wouldn't say it's setbacks

because I always learn from every single

experience that I have and it's been

literally just you know making sure that

I've learned over time that I do much

better when I really enjoy what I work

on and I've learned that like trying

different experiences and if it's not

working out going to the next one but

using the last one as a learning

experience is really important so when I

was selling life insurance realizing

that I didn't necessarily I wasn't as

good at selling but I still expand I

learned a lot from it and then I moved

on to the next thing so you're always

just learning and trying new things and

you just can't give up thank you so much

buzzy and this next question is for both

you Hadi and fuzzy this is from Alice in

Zambia she said universities are

expensive so how can I learn computer

science without a university education

so judging by the question I'm assuming

she's a bit further along and so if you

both could speak to how can she learn

the basics and also how can she continue

to grow as she reached reaches those

more advanced stages how do you want to

take this or I can take it I can take it

all though Fuzzy's a perfect example of

somebody who's had an incredible career

creating and creating google

spreadsheets and even Google Docs and

Google Drive there's being used by over

a billion users and he never went to a

university to learn computer science he

basically taught himself coding and so

there's lots and lots of people that

teach yourself I also taught myself when

I was much younger living in Iran

but when I tell myself it wasn't nearly

as easy you needed to use books and

learning computer programming as part

today if you use code org as a beginner

you can learn all the stuff that we were

showing you you can use code or to

basically learn from our lessons that

guide you through them and you can also

get full computer science university

level computer science classes online as

well and in fact if you visit code.org

we link to some of the best university

computer science classes such as cs50 at

Harvard which I suspect is their class a

Jana she D is going to take when one of

either whether junior year senior year

starts and it's a year-long computer

science class that you could pay tens of

thousands of dollars to go to Harvard to

take that class or you can take it

online besides that there's many other

online university classes that you can

see links to from the code.org websites

and if you sign up on co.org slash break

for a mailing list you'll actually will

link that in our weekly email after this

episode oh wow just to expand on that

the best way to learn is to have a

project in mind so I love the fact that

when you go on code or you're actually

building something and learning it's

much better than reading a book whenever

I've done I've learned I in the past I

would get all sorts of books and then I

would try to use it to build something

exactly and we're so lucky we've had

students now have created 80 million

projects on code.org in just the last

two years so you won't be alone so we're

reaching the end of our time whether the

fun doesn't stop here we're gonna send

you all an email within the next hour

with all of our weekly challenges if

you're not on our email list go to code

org slash break and sign up and for this

week's challenges you're first gonna get

some practice you're gonna practice

variables to make a little bee that goes

and fetches honey and for our older

students there's some variable puzzles

that you can do an app lab and then for

this week's challenge you can either

modify the alien coin game that Sophia

made or if you can add features to a

storyteller app that there is made or do

both of those and when you finish share

with your parents if you have social

media you can ask them to share the app

on social media with hashtag go break or

you can email it to us and

that will pick two of the best ones that

you submit to highlight them and invite

them on our show next week and for

parents our activities each week include

activities that students can do on a

mobile phone if you don't have a

computer or even an unplugged activity

for students who don't have even a

device of any sort so please sign up for

our mailing list at code.org slash break

and lastly before we say goodbye I want

to share next week's special guests

which I'm very excited about we have two

special guests next week

one is Macklemore the famous rapper and

the second is Scott Forstall the

inventor of iOS and the iPhone so that's

going to be a really special episode and

not one to miss as we part I want to say

goodbye to our special guest fuzzy so

can we all switch to gallery view and

I'm going to play a quick round of

applause for fuzzy since so yeah it's

not here for us and all right everybody

good bye I by Darius great job thank you

and if you enjoyed today's episode

please spread the word if each of you

invites other pounds we're gonna to

gather make this largest interactive

classroom

thank you all goodbye see you next week

and if you're alone take a code break

you

you

you

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