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Instructor Overview

Students work with a set of cards showing different ways of expressing ratios, including both part-part statements and part-whole statements. They group the cards that show the same ratio of boys to girls, but without the explicit use of the term equivalent.

Key Concepts

Ratios can be represented in a:b form, as fractions, as decimals, as factors, and in words; they can be expressed in part-part statements or in part-whole statements.

Goals and Learning Objectives

  • Group cards showing ratios that are equivalent but expressed in different forms.