A teenage programmer is giving her computer instructions on making a sandwich. She realizes that the pattern of slicing and layering are repeated – and finds this useful in writing her code. She uses a similar set of slicing and layering instructions to try to get the computer to make her dessert – with less success. Teacher Notes: Jumping off points: Discuss pattern recognition being applied to medicine (e.g. patterns identified in diseases), robotics, speech recognition and artificial intelligence in general. Link to other patterns in real life such as common rules for spellings, or patterns in songs. Discuss everyday patterns that students can recognize.