Course 1 - Maze Loops

one thing that computers are really good

at is repeating commands as a person you

get really bored if you had to do the

same thing lots of times in a row but a

computer can do the same thing millions

or even billions of times and not get

bored and be able to carry that out

really well

so for example if I wanted to wish

everyone on facebook a happy birthday by

sending them an email it might take me

more than a century to actually write

out all of those emails to everyone but

with just a few lines of code i can have

a system send an email to everyone on

facebook wishing them a happy birthday

so that's what loops are and why they're

valuable and something that computers

can do very well in this example your

goal is going to be to move the bird now

we're going to be able to use the repeat

block in order to be able to do this

very easily you can either do this by

giving the computer and move forward

command five times in order to advance

the the bird one step each time to the

pig or you can just tell the computer to

move forward once and then tell it to

repeat that five times and it will do

the same thing so in order to do this

you drag your move forward command and

then you put it inside the repeat block

and you can click on it and tell it how

many times you want to repeat the block

to tell how many steps you wanted to

take forward now one more thing is you

can put as many commands as you want

inside the repeat block so in this

example your tongue it to move forward

and turn left which will do five times

alright good job and have fun