# Proportional Relationships

Grade 7 / Math / Proportions
CCSS: Math.7.RP.A.2

Common Core State Standards

 Math Math 7 Grade 7 RP Ratios & Proportional Relationships A Analyze proportional relationships and use them to solve real-world and mathematical problems 2 Recognize and represent proportional relationships between quantities. a. Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin. b. Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships. c. Represent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn. d. Explain what a point (x, y) on the graph of a proportional relationship means in terms of the situation, with special attention to the points (0, 0) and (1, r) where r is the unit rate. Download Common Core State Standards (PDF 1.2 MB)

### Objective

Represent proportional relationships with equations from tables, graphs, diagrams and verbal descriptions

17 min

### 2. Observe this Lesson:

• Watch the lesson and take notes on your Guide.
• Identify which elements work and which don't.
• Make a plan for how you would adjust the lesson to more fully align to the CCSS
• How does this lesson develop students' conceptual understanding of proportional relationships?

• Post what you thought about the lesson in the comments below"

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