How did numbers begin?

By Mindel Sitomer

Briefly explains the matching and comparison of quantities, the naming and ordering of numbers, and counting--all steps in the history of numbers.

How did numbers begin?

By Mindel Sitomer

Briefly explains the matching and comparison of quantities, the naming and ordering of numbers, and counting--all steps in the history of numbers.

Zero is not nothing

By Mindel Sitomer

Discusses the importance of zero in the decimal system and its many uses.

Circles Young Math

By Mindel Sitomer, George Giusti, Harry Sitomer

Circles

By Mindel Sitomer

Simple experiments illustrate the concept and characteristics of the circle.

Lines, segments, polygons

By Mindel Sitomer

Defines rays and segments, explains how they can be put together to form polygons, and describes how to make a clockboard and use it to create various geometric designs.

Lines Segments Polygons

By Mindel Sitomer

What is Symmetry

By Mindel Sitomer

What Is Symmetry Young Math

By Mindel Sitomer, Harry Sitomer

Ruan tang 666

By Malcolm E. Weiss

A simple introduction to algebra for very young children.