Unit 4: Proportional Relationships and Percentages
Students deepen their understanding of proportional relationships and percentages, solving multi-step problems and working with situations that involve fractional amounts.
Worksheets
Every sheet has an answer key. Free to print, no login.
What this unit covers
A Proportional Relationships with Fractions · 5 lessons
Goals
- Create algebraic expressions that represent a situation involving adding or subtracting a fraction of the initial value.
- Solve problems about proportional relationships with fractional quantities.
- Use long division to generate a decimal representation of a fraction.
Lessons
- Lots of Flags
- Ratios and Rates with Fractions
- Revisiting Proportional Relationships
- More than That, Less than That
- Say It with Decimals
B Percent Increase and Decrease · 4 lessons
Goals
- Create algebraic expressions or equations that represent a situation involving percent increase or decrease.
- Use diagrams to solve problems involving percent increase or decrease.
Lessons
- Increasing and Decreasing
- One Hundred Percent
- Percent Increase and Decrease with Equations
- Part of a Percent
C Applying Percentages · 5 lessons
Goals
- Calculate measurement error, and express it as a percentage of the actual value.
- Solve problems involving tax, tip, simple interest, markup, markdown, or commission.
Lessons
- Tax and Tip
- Percentage Contexts
- Solving Multi-step Percentage Problems
- Measurement Error
- Percent Error
D Let’s Put It to Work · 2 lessons
Lessons
- Changes on the Earth (Optional)
- Posing Percentage Problems
Helpful to know first
The curriculum says this unit builds on these.
Grade 6 Math · Unit 2
Introducing Ratios
Grade 6 Math · Unit 3
Unit Rates and Percentages
Grade 7 Math · Unit 2
Introducing Proportional Relationships