Solving Proportions

Topics for Today:

We began our unit on solving and applying proportions today, and introduced/reviewed some important vocabulary, beginning with ratios. A ratio is just a comparison of numbers by division. Students have seen ratios ever since they began working with fractions.

We also used the means-extremes (cross products) property to solve proportions.

Vocabulary:

proportion, cross products

Sections Covered in Textbook:

5-5: Using Proportional Reasoning (pages 260-265)

Resources & Tutorials:

1) What is a proportion?
2) How to solve a proportion by using cross products?
3) Solving Proportions Class notes