Unit 9: Putting It All Together

Students revisit and connect topics from across the year through optional explorations of estimation, energy and population, voting systems, and connections between geometric and algebraic representations of fractions.

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Unit

Review the unit’s main ideas.

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Concept

Start with the core idea.

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Practice

Build fluency with more questions.

Set 1

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Set 2

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Advanced

Try more challenging problems.

Set 1

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Set 2

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What this unit covers

A Exploring Our World · 4 lessons

Goals

• Choose a method for comparing numbers.
• Estimate quantities in a real-world situation, and explain the estimation strategy.
• Solve problems involving rates.

Lessons

1. Fermi Problems (Optional)
2. Energy Flow (Optional)
3. Making Paper (Optional)
4. If Our Class Were the World (Optional)

B Voting · 5 lessons

Goals

• Choose and justify which voting system seems the fairest for dealing with more than two choices.
• Critique a statement reporting the results of a vote.
• Interpret voting situations involving more than two choices through the use of ratios and percentages.

Lessons

1. How Do We Choose? (Optional)
2. More than Two Choices (Optional)
3. Comparing Voting Systems (Optional)
4. Picking Representatives (Optional)
5. Designing Districts (Optional)

C Making Connections · 2 lessons

Goals

• Coordinate diagrams and expressions involving equivalent fractions.
• Interpret and create diagrams involving a rectangle decomposed into squares.

Lessons

1. Rectangle Madness (Optional)
2. Rectangle Fractions (Optional)