Study Guide and Packet for Friday's Unit Test

Click here to access the Work Packet to Review

Answers to the Review Packet

Comparing and Scaling- Unit Test Review Guide

Essential Learning

• Understands and uses ratios, fractions, differences and percents to solve problems.
• Applies concepts of ratios and proportion in mathematical situations.

Concepts:

• Write comparison statements using ratios, fractions, differences and percents.
• Find unit rates for given situations
• Work with proportional reasoning and create proportions for given problems
• Write equations from word problems
• Complete rate tables.
• Understand percents in forms of tax, raises, commissions and mark-ups.
• Understand the constant of proportionality
• Find scale factors between given proportions

Vocabulary use

Be specific, use the terms we have learned – see the list in your vocabulary notebook.

As a way to study, review and redo the following:

• The two check-ins in the Unit and entry slips.
• Additional Practice Sheet - especially “Finding Unit Rates”
• Looking Back p. 87-88 # 1 and 2
• Question Bank packet
• Important questions to look at in your math binder:

• ACE Inv 1 #1-3 p. 19
• ACE Inv 1 #22 p. 25
• Problem 2.2 p. 46 1a and ACE Inv 2 # 10 p. 53
• Definition and example of constant of proportionality p. 47
• ACE Inv 3 # 27-30 and 35 p. 76 and 77.

Comparing and Scaling Inv. 2 Check-in Study Guide

Essential Learnings to Understand:

• Compute a unit rate.
• Solve problems by scaling up or down a unit rate.
• Use unit rate to find the best deal (more favorable).
• Be able match an equation to a graph.
• Use graphs and equations to solve problems.

For Review:

• Look at Inv 2.3 specifically B and C p. 49-50.
• Comparing and Scaling Inv 2 Math Reflection Worksheet

Helpful Site - Divisibility Rules

Click here to link to a helpful site on the Divisibility Rule.

Also here is a nice Khan Academy Video Reviewing Division Rules.

New Unit Comparing and Scaling

Welcome to our new unit focusing on ratios, rates, percents and proportions.

Investigation 1: Ways of Comparing: Ratios and Proportions

Investigation 1 focuses on different strategies for comparing quantities—using ratios, fractions, percents. Students learn what different types of comparative statements say about data given. They are asked to write comparative statements using ratios and differences that describe data. 

We have completed Investigation 1.1 -1.2 in the new Comparing and Scaling Book.
We focused on the ability to make comparisons of quantitative data. 
We focused on making comparisons through:
1. ratios
2. differences
3. percents
4. simplified ratios

Further we stressed the importance of making comparisons between part-to-part or part-to-whole.