This Computing video supports teachers in explaining how data is transmitted across space using radio waves, and how binary code is used as the foundation for digital communication. It introduces the concept of radio waves as a reliable method of space communication due to their long wavelengths, which allow signals to travel with minimal distortion. The video also explores how orbiters relay radio messages to Mars rovers, and introduces the history and structure of binary numbers as a base-two counting system used to encode data through on/off signals. It explains how individual bits combine into bytes and how Boolean logic, named after George Boole, underpins all digital operations.

This video is part of Kapow Primary’s Computing scheme of work – videos. It provides essential background knowledge to help teachers introduce children to abstract concepts such as binary, data encoding and digital communication. The video prepares teachers to model practical activities that consolidate children’s understanding of binary numbers, ahead of later lessons involving binary calculations and data handling.

Computing, Upper key stage 2, Year 5, Data handling: Mars Rover 1, Lesson 2: Binary code