Count the Dots - Binary Numbers

Data in computers is stored and transmitted as a series of zeros and ones. In this activity students explore how words and numbers can be represented using just these two symbols. This resource includes ideas teachers can use to introduce the topic in order to develop understanding of the binary system followed by six activities to be used as reinforcement; Binary numbers, Working with binary, Sending secret messages, E-mail and modems, Counting higher than 31 and More on binary numbers. To conclude, there is more information detailing how the binary system is used followed by a page of answers and hints. Where necessary, photocopy masters are included. This collection of twenty activities from Computer Science Unplugged is designed to aid the teaching and learning of computer science through engaging games and puzzles using cards, string, crayons and lots of running around.