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The Muddy City: Minimal Spanning Trees
Computer Science UnpluggedAdd to list DetailsIn this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city. It can lead on to a discussion of minimal spanning tree algorithms for optimizing...
Information Hiding: Sharing Secrets
Computer Science UnpluggedAdd to list DetailsThis activity about cryptographic techniques illustrates a situation where information is shared, and yet none of it is revealed. A group of learners will calculate their average age without anyone...
Programming Languages: Harold the Robot
Computer Science UnpluggedAdd to list DetailsIn 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,...
From the Internet to Outer Space
National Museum of American HistoryAdd to list DetailsIn this activity, learners will use Google Sky to observe features of the night sky and share their observations. Learners partake in a "Telescope Treasure Hunt" as they look for...
Puzzled Partners
The ExploratoriumAdd to list DetailsIn this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece. This is a matchmaking activity that can be used as an icebreaker to introduce...
Battleships: Searching Algorithms
Computer Science UnpluggedAdd to list DetailsThis activity explores the main algorithms that are used as the basis for searching on computers, using different variations on the game of battleships. This activity demonstrates three search...
Secret Writing Devices
Oregon Museum of Science and IndustryAdd to list DetailsIn this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other. They can also create their own codes that are different from...
Patterns in Pixels
Arizona Science CenterAdd to list DetailsThis activity draws upon a familiar, computer-based concept related to visual resolution: pixilation. The sharpness of a digital image is determined by the density of illuminated points on a screen...
Tourist Town: Dominating Sets
Computer Science UnpluggedAdd to list DetailsIn this activity, learners use a fictitious map of "Tourist Town" and counters to problem solve how to place ice-cream vans on street intersections so that every other intersection is...
Passion for Pixels
Twin Cities Public TelevisionAdd to list DetailsIn this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper. Learners then use a code of zeroes...