Search Results
Showing results 1 to 20 of 27
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-989.jpg?itok=31BVjoBi)
Public Key Encryption: Kid Krypto
Source Institutions
In this activity, learners conduct a simulation exercise related to public key encryption and try to intercept a message sent between two learners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-651.jpg?itok=C4X5DdHl)
Battleships: Searching Algorithms
Source Institutions
This activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-535.jpg?itok=b2CmYgd4)
Tiny Particles, Big Trouble!
Source Institutions
In this activity, learners discover why some nanoscale science and technology is done in the controlled environment of a clean room, what clean rooms are like, and how scientists help keep the clean r
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-652.png?itok=7Y7WKinv)
Twenty Guesses: Information Theory
Source Institutions
This activity introduces the idea that computer scientists measure information by how "surprising" a message is.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-513.png?itok=rnEZgK4e)
Build a Bubble Circuit
Source Institutions
In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-995.png?itok=E9nL6ARP)
Programming Languages: Harold the Robot
Source Institutions
In this activity related to computer programming, learners give directions to a "robot" (either an adult or another learner) and find out which instructions the robot is able to follow, and how their
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-997.gif?itok=pVh9fQ_z)
Divide and Conquer: Santa's Dirty Socks
Source Institutions
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
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-610.gif?itok=MmrOyvTT)
Art Cars
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-261.png?itok=G8zqFYi5)
Colour by Numbers: Image Representation
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-118.png?itok=I_jQGcQg)
Passion for Pixels
Source Institutions
In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-260.png?itok=pBbwbNrY)
You Can Say That Again!: Text Compression
Source Institutions
This activity helps students learn how computers "compress" text by identifying repeating patterns of letters, words, and phrases.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-644.png?itok=gMpDVXeM)
Circuits with Friends
Source Institutions
In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-000.gif?itok=cVNf8Wj4)
Sound Representation: Modems Unplugged
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-978.jpg?itok=IQMgNFCX)
EEEEK--A Mouse!
Source Institutions
In this activity, learners explore the concept of how engineering solved the problem of human/computer interface.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-906.jpg?itok=-vXZe1jv)
Binary Code Bracelets
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-259.png?itok=yDpeopFH)
Card Flip Magic: Error Detection & Correction
Source Institutions
This magic trick is based on how computers detect and correct data errors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-703.jpg?itok=Jo_SwRUg)
Program a Friend
Source Institutions
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-999.jpg?itok=_4pzAVmU)
The Muddy City: Minimal Spanning Trees
Source Institutions
In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-998.gif?itok=sfGxId-V)
Phylogenetics
Source Institutions
This activity lets learners participate in the process of reconstructing a phylogenetic tree and introduces them to several core bioinformatics concepts, particularly in relation to evolution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-987.jpg?itok=lA9IO2--)
The Turing Test: Conversations with Computers
Source Institutions
This activity aims to stimulate discussion on the question of whether computers can exhibit “intelligence,” or are ever likely to do so in the future.