Suitable for teaching 14-16s. A teenage programmer demonstrates the concept of decomposition, by breaking down the instructions she needs to tell her computer how to do her shopping. Subscribe for more Computer Science clips from BBC Teach on Mondays when we have them in: http://bit.ly/BBCSubscribeTeach If you found this video helpful, give it a like. Share it with someone. Add the video to your own teaching playlists. Create an account, subscribe to the channel and create playlists for different age groups, sets and syllabuses. ===================== A teenage programmer discovers how decomposition works through trial and error with her "computer" - a human figure with a monitor for a head. She tries asking him to go shopping for her, but he doesn't understand. She realises she has to break down the task into a list of simple instructions to follow. With a clear set of ordered instructions, the computer goes to the shop, collects the items, and pays for them - but returns withou