Calculators Let s Investigate

By Marion Smoothey

Triangles

By Marion Smoothey

Introduces triangles through a combination of theory and problems.

Numbers (Let's Investigate)

By Marion Smoothey

Introduces simple math concepts through a variety of problems, games, and activities.

Quadrilaterals

By Marion Smoothey

Introduces quadrilaterals, which are closed shapes made up of four straight lines, through a combination of theory and problems.

Let s investigate triangles

By Marion Smoothey

Introduces triangles through a combination of theory and problems.

Let s Investigate Math II Let s Investigate

By Marion Smoothey

Shapes

By Marion Smoothey

Explores the world of shapes and how they can be drawn, measured, and used in various activities.

Shape patterns

By Marion Smoothey

Summary, Explores the world of shapes and how they can be drawn, measured, and used in various activities.

Angles

By Marion Smoothey

Explores the world of angles and how they can be created, measured, and used in various activities.

Time distance and speed

By Marion Smoothey

Text and activities explain how time, distance, and speed can be measured.