Koomen, Michele

Simple text, photographs, and illustrations introduce sets, presenting examples sorted by size, color, and shape.

Simple text, photographs, and illustrations introduce numbers and counting, including place value, comparing numbers, and examples of how people use numbers. Includes hands-on activity: Number hunt.

Photographs and simple text introduces young readers to different ways to measure things.

Explains set theory to children.

Explains a variety of patterns to children.

Simple text, photographs, and illustrations introduce numbers and counting, including place value, comparing numbers, and examples of how people use numbers. Includes hands-on activity: Number hunt.

Simple text, photographs, and illustrations introduce fractions by showing children dividing a candy bar, a pizza, a rope of licorice, and a pie into fair shares. Includes hands-on activity, make paper fractions.

Explains basic shapes to children.