University of Canterbury: Cs Unplugged: Searching Algorithms

This unit introduces students to some of the building blocks of how computers work without using a computer at all. The lessons keep students actively involved in communication, problem solving, creativity, and thinking skills in...

Many clever algorithms have been devised for sorting values into order efficiently. In this activity students compare different algorithms to sort weights to simulate how computers devise sorted lists.

This puzzle shows students 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 networks.

This activity explores just how hard it is to get things right when it comes to designing good interfaces for computers.

With this activity, educators can teach the binary system to anyone who can count. Using this approach, many adults are also excited when they finally understand what bits and bytes really are.

Learn how compressed formats such as zip, gzip, or gif images are all based on a method called Ziv-Lempel coding, which turns out to be an interesting exercise in finding patterns in text.

This activity uses variations on the game of 20 Questions to demonstrate how we can quantify information content, which in turn shows us how to store and share it efficiently when it comes to computer technology.

A student team activity that demonstrates an approach to parallel sorting, or how much computation can be done at the same time. It can be done on paper, but the lesson becomes more meaningful if the students do it on a large scale,...

Computer networks are based on passing messages from computer to computer. This sounds simple in principle, but in practice all sorts of contention and bottlenecks can occur. This activity gives some first hand experience of such issues,...

This student activity is based around a fictitious pirate story which leads to the unlikely topic of reasoning about patterns in sequences of characters. Experiencing this concretely will help lay the foundation for understanding finite...