Smoothey, Marion

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

Introduces the importances and uses of maps and scale drawings through a variety of problems and activities.

Introduces a variety of activies to help understand maps, plans, and scale drawings.

Contains questions, games, and activities to help young mathematicians learn to understand and draw graphs.

Contains questions, games, and activities to help young readers learn how to crack and create codes.

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

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

Contains questions, games, and activities for young mathematicians to help them improve their estimating skills.

Discusses many tools used to help people with math, including the abacus and slide rule, and focuses on the calculator showing how to use the basic keys.

Introduces the concepts of ratio and proportion through problems and exercises on finding fair shares and comparing sizes and amounts of similar objects, quantities, and groups.