1. Clever Counting Investigation 1: Counting Possibilities

2. HairEyesNose bushystaringhooked baldbeadylong and straight droopyturned up wide openedbroken Here are the choices the artist gave the witness: Making Faces Detective Curious asked the guard’s friend to work with a police artist to create a sketch. To make an accurate sketch, the artist gave the witness several choices for each attribute.

3. Problem 1.1 A How many facial descriptions can you make by choosing one attribute for each feature?

4. Problem 1.1 B The witness said he remembered something about the driver’s mouth. The artist suggested these possibilities? thin and mean toothless sinister grin If you consider the hair,eyes, nose, and mouth, how many facial descriptions can you make by choosing one attribute for each feature?

5. Problem 1.1 Follow-up Of all the facial descriptions you found in part B, how many include droopy eyes? Of all the facial descriptions you found in part B, how many include a bald head and a thin, mean mouth?