size judgment

Two siblings compare the sizes of things they are familiar with, from the buses they ride to the beds they sleep in.

Photographs and text introduce the concept of size through comparisons.

Introduces the concepts of big and small, comparing such things as people and elephants, rabbits and mice, and skyscrapers and airplanes.

Shows just how big several big things truly are by setting them next to other items in illustrations.

Illustrates the concept of big, bigger, and biggest by comparing the physical measurements of such large things as a blue whale, a mountain, a star, and the universe.

Photographs and simple text introduce the basic concepts of measuring size and describe the different tools used to measure things.

Teaches numbers one through twelve, six colors, and three primary shapes: circle, square, and triangle.