Introduces the principles of right angles through paper folding techniques which allow the reader to construct a rectangle and a square.

Basic concepts of triangles are revealed through paper-folding activities.

Explains the Roman numeral system, which, though very old, is still in use today.

Little Three introduces the concepts of "three" and counting by encountering trios of baskets, pigs, dancing mice, and other objects and animals.

Little Nine introduces the concept of "nine" by interacting with nine of a variety of things which group and regroup to demonstrate principles of adding and subtracting.

Little Six is an active and endearing girl who loves to count to six. COme along on her walk and meet (and count) many friendly animals with Little Six!

Little Eight introduces the concept of "eight" by interacting with eight of a number of things, some of which are grouped to further expose the reader to subtracting and dividing.

Simple text and photographs show the different ways of counting to 100.

Simple text describes the basic units of measurement and how to use tools to help measure objects.

Each title in the Let's Do Math! series uses vibrant images and interesting examples to engage early learners, helping them build a strong mathematics foundation.