approximate computation

Two friends try to estimate how long they will have to wait in line to get on the fantastic new ride.

Laying out a mixed assemblage of toys, pipe cleaners, marbles, peanuts, and other small items, author Bruce Goldstone helps viewers train themselves to estimate the size of groups of about 10 things on sight then goes on to present similar materials by hundreds and then by thousands.

The four math monsters show how to estimate as they help Aunt Two Lips figure out how many gollywomples are on her 100 trees.

A simple introduction to estimation that explains how it is used, modeling, chunking, and other related concepts. Includes a glossary.

Photographs and easy-to-follow text teach children about estimations and offer tips to help them create accurate estimates.

Readers learn how to estimate as two friends guess how many passengers are on a bus, cars are in a traffic jam, and jelly beans are in a jar.