Session 9: Fractions, Percents, and Ratios

In this session, we'll look at several topics related to fractions, percents, and ratios. As in earlier sessions, we'll look at graphical and geometric representations of these topics, as well as some of their applications in the physical world. As you work through the activities in this session, reflect on how mathematics is reasonable and logical, and how it is helpful to look for the logical patterns that emerge when you think about a mathematical situation.

For information on required and/or optional material, see Note 1

Part A:
Models for the Multiplication and Division of Fractions

Part B:
Decimals and Percents

Part C:
Fibonacci Numbers

Homework

In this session, you will do the following:
•	Understand how to use area models for computation with fractions and decimals
•	Use benchmarks to estimate the "reasonableness" of answers to percent problems
•	Understand the meaning of "percent"
•	Solve percent problems with proportions
•	Explore Fibonacci numbers


	Throughout the session you will be prompted to view short video segments. In addition to these excerpts, you may choose to watch the full-length video of this session.


	Previously Introduced:		New in This Session:
	quotative division		area model for multiplication common denominator model for division Fibonacci sequence golden mean golden rectangle percent proportion ratio

Next > Part A: Models for the Multiplication and Division of Fractions

Session : Index | Notes | Solutions | Video