Introducing Ratios and Ratio Language

Student Summary

A ratio is an association between two or more quantities. There are many ways to describe a situation in terms of ratios. For example, look at this collection:

<p>A discrete diagram of squares and circles such that the top row contains 6 squares and the bottom row contains 3 circles.</p>

Here are some correct ways to describe the collection:

  • The ratio of squares to circles is 6:36:3.
  • The ratio of circles to squares is 3 to 6.

Notice that the shapes can be arranged in equal groups, which allow us to describe the shapes using other numbers.

<p>A discrete diagram of 6 squares and 3 circles organized into 3 equal groups of 2 squares and 1 circle each.</p>

  • There are 2 squares for every 1 circle.
  • There is 1 circle for every 2 squares.

Visual / Anchor Chart

Standards

Building On
3.MD.6

3.MD.C.6

Addressing
6.RP.1

6.RP.A.1

6.RP.1

6.RP.A.1