University of Canterbury: Cs Unplugged: Binary Numbers

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...

Explore the main algorithms that are used as the basis for keyword searching on computers, using different variations on the game of battleships.

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 activity explores how images are displayed, based on the pixel as a building block using data compression. The compression method used in this activity is based on the one used in fax machines, for black and white images.

Imagine 31 numbers have been organized in ascending order in a list by a computer program. Now the program has to find a number in the list, but it can only look at one number at a time. Is it easier to find the number now, than if they...