ratio and proportion

An introduction to the concept of symmetry as found in nature and everyday objects, and includes step-by-step instructions for creating simple symmetrical designs.

"Models how the techniques of conducting mathematical number talks and number strings enable students to grapple with number relationships, analyze their justifications and explanations, and communicate and solidify these critical understandings."--Page xxv.

"Introduces the reader to probability, statistics, ratios and proportions"--Provided by publisher.

Presents an introduction to mathematical concepts of scale and enlargement, using real-life examples, computer animations, and graphics.

Introduces students to the role ratios, proportions, and percents play in everyday life.

Introduces the concept of ratio by comparing what humans would be able to do if they had bodies like different animals.

Comical illustrations and simple rhymes introduce readers to fractions and explain how to divide various things into halves, thirds, tenths, and more.

Introduces the concept of symmetry, discussing how it appears in the world. Includes activities.

"Learn about percents and ratios, including how to tell what's a better purchase, figuring out sales tax and discounts and appropriate tips"--Provided by publisher.