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Color by Numbers: Image Representation
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Computers store drawings, photographs, and other pictures using only numbers. Through this activity, learners decode numbers to create pictures using the same process that computers use.

Divide and Conquer: Santa's Dirty Socks
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This activity introduces the idea of "divide and conquer" using a fictitious but serious problem--a pair of dirty socks has accidentally been wrapped in one of the presents that Santa is about to deli

Programming Languages: Marching Orders
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In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures.

Clap Sensor: Build a Sound Sensor Using a Pico Cricket
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This activity requires a Pico Cricket (tiny computer). Learners work on designing and building a sound sensor out of household materials, like plastic wrap and cardboard.

Art Cars
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In this activity, learners design miniature cars. Learners can create a telephone car, soccer car, merry-go-round car, or any other theme car they can imagine.

Colour by Numbers: Image Representation
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This activity shows learners how computers use numbers to represent pictures. A grid is used to represent the pixels (short for picture elements) of a computer screen.

Passion for Pixels
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In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

You Can Say That Again!: Text Compression
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This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.

Circuits with Friends
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In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.

Sound Representation: Modems Unplugged
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In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.

Cactus Needle Phonograph
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Build a phonograph record player using a cactus needle, a record, LEGOs gear box, and a piece of paper! This activity uses a Pico Cricket to turn the motor.

EEEEK--A Mouse!
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In this activity, learners explore the concept of how engineering solved the problem of human/computer interface.

Binary Code Bracelets
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In this activity, learners make their own binary code bracelets by translating their initials into 0s and 1s represented by beads of 2 different colors.

Card Flip Magic: Error Detection & Correction
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This magic trick is based on how computers detect and correct data errors.

Patterns in Pixels
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This activity (page 2) draws upon a familiar, computer-based concept related to visual resolution: pixilation.

Arduino Blink Challenge
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In this activity, learners explore computer programming and the impact of computers on society. Learners build and test a program to turn a light on and off using an Arduino board.

Overnight Painting Machine: Pico Cricket Activity
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This activity requires a Pico Cricket (tiny computer).

Program a Friend
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In this activity (on page 2), one person "programs" the other like a robot to move through a space, trying to get them to avoid obstacles and reach a goal.

How to Train Your Robot
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In this activity, learners discover that training a robot can be hard work! Learners investigate how robots complete a task by following a list of sequential instructions.

Musical Ice: How to Make an Ice Theremin
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Build a musical ice theremin by programming a micro controller, like a Pico Cricket to respond to resistance generated by the ice melting, or the ice being touched.