Great Estimations

How many jelly beans are on this book's cover? Don't count — estimate. If someone handed you a big bowl of jelly beans, how would you figure out how many there are? You could count them, one by one — or you could estimate. Do you see more than five jelly beans? Less than a million?

This unique book will show you how to train your eyes and your mind to make really great estimations — by making estimating into a game. Jelly beans are just the beginning.