Stretching and Shrinking Unit Project 2016- Google Sketch-up

Examples of past projects...

Click here to access the Unit Project - Google Sketch-up

Students Learning about Scaling with a rubber band activity.

New Unit - Stretching and Shrinking

Common Core Standards for this Unit:

• 7.RP.A.2 Recognize and represent proportional relationships between quantities.
• 7.RP.A.2a 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.
• 7.RP.A.2b Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.
• 7.RP.A.3 Use proportional relationships to solve multistep ratio and percent problems.

Goals for this Unit:

• Similar Figures Understand what it means for figures to be similar

- Identify similar figures by comparing corresponding sides and angles

- Use scale factors and ratios to describe relationships among the side lengths, perimeters, and areas of similar figures          

- Use algebraic rules to produce similar figures

- Recognize when a rule shrinks or enlarges a figure

• Reasoning With Similar Figures Develop strategies for using similar figures to solve problems

- Predict the ways that stretching or shrinking a figure will affect side lengths, angle measures, perimeters, and areas

- Use scale factors or ratios to find missing side lengths in a pair of similar figures

- Use similarity to solve real-world problems

Answer Key for Today's Review Packet

Study for ATN Unit Test by trying problems from the packet you got in class today. You are not expected to complete the whole packet. Try some of the problems, check them using the key posted on the Math Blog. If you're getting them right, move on to another type of problem, otherwise, try to find your mistake and try again. 

Click here to access the key

ATN Practice Test,Investigation Reflection and Looking Back

Practice Test - Click here to Access

Click here to access the Question Document.

Unit Assessment Study Guide and Packet.

Your Unit Assessment will be on Friday 8th.

Here is the Study Guide

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Here is the Study Packet

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Here are the answers to the study packet.

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Have fun reviewing!