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Hour of Code: Chris Bosh teaches Repeat Until statements

The Hour of Code is a one-hour introduction to computer science, designed to demystify code and show that anybody can learn the basics. In this video, basketball star Chris Bosh explains the difference between a Repeat Until command and a Repeat Loop command. This is the third of seven clips in the Hour of Code tutorial. ...

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Hour of Code: Saloni teaches If/Else statements with Scrat the Squirrel from Ice Age

The Hour of Code is a one-hour introduction to computer science, designed to demystify code and show that anybody can learn the basics. In this video, Saloni explains what an If/Else statement is. With the help of Scrat the Squirrel from Ice Age, she goes on to demonstrate how If/Else blocks can be used to program characters' ...

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Hour of Code: Saloni on the If/Else block

The Hour of Code is a one-hour introduction to computer science, designed to demystify code and show that anybody can learn the basics. In this video, Saloni explains what an If/Else statement is and looks at how If/Else blocks can be used to program the movement of a zombie character. This is the fifth of seven clips in ...

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How to Use Scratch: Making a Sprite Move

Tell your Sprite where to go - get your Sprite to move in all different directions - left, right, up, down

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MathXplosion, Ep 47: Creative problem solving

Have you ever had a problem you couldn't solve? Here's an idea: act it out! You can use puppets, objects or people to act out the problem by trying to do what the people or things in your problem do. It will help you because you are actually doing the problem!

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How is your personal information kept secret on the internet?

Lots of private data is exchanged over the internet. What are some examples? As Mia Epner explains, cryptography allows for the secure transfer of data online. How does encryption work? And what is a key? Today information is encrypted using 256 bit keys. This keeps information safe because it means there are way too many ...

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How do computers get hacked?

What are some examples of cyber crime? Watch this clip to find out how viruses, denial of service attacks (DDoS) and phishing scams work. What is a botnet? And how are they used by hackers to bring down websites? Most of the time computers get hacked because of simple mistakes users make. What can users do to better protect ...

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Telling robots what to do

If you were programming a robot to play a competitive game of soccer, what are some of the things you would consider? Think about some of the most basic functions of a robot, like walking, stopping and turning, to more complicated functions like recognising objects and reacting to them in a specific way.

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MathXplosion, Ep 48: The most important thing when solving word problems

It's very important to read problems carefully so you can determine the important facts and understand the questions you are being asked to solve. You may find an answer using pictures and numbers, but if you didn’t answer the right question, what seems right can actually be wrong.

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How to Use Scratch: Adding Background Sounds

Record and add your own background sound to your project or choose the sounds from the library like a rattle, a ripple or a pop!

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Create your own card game

Grab a deck of cards and a bunch of friends and create your own card game. What sort of rules will you decide on? Get a pen and some paper out and brainstorm some possibilities. You might decide on something like 'If I draw a red card, I get a point' and 'If I draw a black card, you get a point.' What other rules can you ...

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Unplugged Activity: What is computer science?

Do you know what a computer programmer does? Watch as some experts in the field explain. For more information on the activities introduced in this video, visit http://learn.code.org/s/1/level/1

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How to Use Scratch: Intro to Scratch 2.0

Want to make your own games? Scratch is a programming language, created by MIT, that makes it easy to create interactive art, stories, simulations, and games. Explore your ideas and share your creations online.

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MathXplosion, Ep 46: Can you solve the Three Cups Problem?

Find three cups, place them in a line and turn one cup facing down. Can you get all three cups facing down after making exactly three moves? The one rule is: for every move, two cups must be flipped simultaneously. Since the goal is to get all three cups facing down (an odd number) and you start with one cup facing down ...

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BTN: Computer code

Are you interested in finding out about computer coding? Watch this clip to see why some famous faces are promoting the benefits of learning computer programming. See how some young students are learning to code and finding that it's not that hard after all!

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How to Use Scratch: Creating an interactive Holiday Card Activity

Looking for a simple project to get you started in Scratch? Add characters, animate them, create and share your own interactive Holiday Card.

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How to Use Scratch: Adding sounds to your Scratch project

There are all sorts of sounds you could add to your Scratch project. Give your project that extra 'oomph' by adding sounds.

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How to Use Scratch: Adding Background Images

Make your project come alive by adding a backdrop - anything from a stage to a snow scene or, just draw your own.

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Hour of Code: Bill Gates explains If statements

The Hour of Code is a one-hour introduction to computer science, designed to demystify code and show that anybody can learn the basics. In this video, Bill Gates, creator of Microsoft introduces the If statement. He explains that the If statement is a fundamental concept in computer programming. By demonstrating the use ...

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Hour of Code: Introduction

The Hour of Code is a one-hour introduction to computer science, designed to demystify code and show that anybody can learn the basics.  This video explains what computer science is and what a computer programmer does. This is the first of seven clips in the Hour of Code tutorial. To try your hand at coding visit learn.code.org