Leaping Lizards - MathStart 1 Author:Stuart J. Murphy It's almost time for the show to begin -- but where are all the lizards? As a frantic snake looks high and low for the performers, they start to arrive, first by fives and then by tens. Will all fifty lizards show up in time? A lively rhymed story and pictures bursting with color introduce the math concept of counting by fives and tens, an impor... more »tant first step in learning addition and multiplication.« less