How can a machine learn about the world? In some ways computers are like very young babies, always soaking up new examples and trying to put what they sense into different buckets — dog, cat, familiar face, stranger.

In this two-part tutorial, you will learn about a type of artificial intelligence (AI) called machine learning (ML), exploring an example called “image classification” — a way for computers to put what they see into various buckets. You will make a “Peekaboo” game with your very own Personal Image Classification (PIC) model. A baby shown in the app will smile when you show your face and cry when you hide your face.