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Frozen - Hour of Code Introduction

  • 0:06 - 0:10
    Which grade are you in?
    second, tenth grade, first grade
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    I was in the eight grade when I learned to program.
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    I got my first computer when I was in the sixth grade.
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    What me gets excited is
    being able to fix peoples problems
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    You can express yourself;
    you can build things from an idea.
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    Computer science is the basis for a lot of the things
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    students and proffesionals will do
    for the next 20 or 30 years.
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    I like programming because I like helping people.
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    I get the opportunity to build something
    that's gonna make peoples life easier.
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    I think this is the closest thing we have to superpower.
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    Getting started is the most important part.
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    I'm a beginner and I want you to learn with me.
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    Hi, my name is Lyndsey
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    I majored in theaterian college,
    but I also majored in computer science.
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    And now I'm model, act and write my own apps.
  • 0:56 - 1:01
    Let's use code to help Anna and Elsa
    as they explore the magic and beauty of ice.
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    You'll create snowflakes and patterns
    if you ice-skate
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    and make a winterwonderland
    which you can share with your friends.
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    In the next hour,
    you're going to learn the basics of how to code.
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    Traditionally programming is usually in text,
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    but we will use blockly which uses visual blocks,
    which you can drag and drop to write programs.
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    This is how even university students learn the basics.
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    Under the hood, you are still creating code.
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    The concepts you will be learning
    are concepts which computer programmers are using every day
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    and are the foundation to computer science.
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    A PROGRAM is a set of instructions
    that tell a computer what to do.
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    Let's build a code for a program that will help Elsa to create a simple line.
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    We will use this later to create more complex patterns.
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    Your screen is split into three main parts.
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    On the left is the ice surface
    where you will run your program.
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    The instructions for each level
    are written right below the surface.
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    This middle area is the toolbox and each of these blocks
    is an action Elsa and Anna can do.
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    The white space on the right is called the workspace
    and this is where we will build our program.
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    To move around the ice surface, you wiull use the "move forward"-block.
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    Here the move forward block says,
    move forward by 100 pixels.
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    When we press run... What happens?
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    Elsa moves forward a certain amount on the screen...
    100 pixels in fact.
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    Pixels are basically very tiny squares on your computer screen.
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    The other block in the puzzle sais:
    "turn right by 90 degrees".
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    When we use the "turn right"-block,
    that makes elsa turn a certain amount.
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    You can play around with how far you want elsa to turn.
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    The angle is measured from the path ahead of Elsa,
    so this is the 90 degree turn...
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    and this is an 120 degree turn.
  • 2:55 - 3:00
    And remember, you can change the number of pixels or degrees
    by clicking on the arrows next to them
Title:
Frozen - Hour of Code Introduction
Description:

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Video Language:
English
Team:
Code.org
Project:
Hour of Code
Duration:
03:01

English subtitles

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