A clever introduction to geometry encourages readers to use some common household objects as props to define different kinds of triangles, quadrilaterals, and other polygons. All of the concepts are demonstrated using a toothpick, a slice of American cheese, pretzel sticks, a round sheet of paper, a piece of graph paper, and a pencil. Tobin's bightly colored illustrations and Adler's occasional bad puns ("Now that's what I call a square meal!") add touches of humor without overwhelming the sound information. (Ages 8-10)

A hands-on introduction to polygons that takes the fear out of math and puts the fun back in! 

Draw three dots on a piece of paper. Or maybe-- draw three dots on a slice of cheese.  What happens when you connect the dots? 

With bright, colorful illustrations and a simple, funny text, Shape Up! introduces triangles, quadrangles, and other polygons to young readers, encouraging them to play along, and learn everything there is to know about shapes.  

Explaining basic geometric concepts and offering definitions for important vocabulary, this introduction to shapes, lines, and angles is to good to miss-- even if the jokes can be a little . . . cheesy. 

Created by a respected children's nonfiction author and former math teacher, this is a perfect grounding in basic shapes-- and a lot of fun, too.