Train your eyes to estimate

                  
Great Estimations           Greater Estimations
both by Bruce Goldstone


Ever tried to guess how many jellybeans were in a jar? You were either really close or completely off base. To improve your chances of winning the prize, you need to train your eyes to recognize large numbers. Using a jumbled mix of pencils, candy, beads, cherries, bugs, stamps and toys, Goldstone helps kids visualize what 10, 100 and 1,000 looks like. Then he explains how to estimate amounts using clump counting and box and count techniques. Greater Estimations ups the ante by showing kids how to estimate length, height, weight and volume.

Challenging fun for the whole family!