Use proportional relationships to solve multistep ratio and percent problems.

Examples: Sample problems may involve simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, and percent error.

New content ACOS 2009 Correlation
Sixth Grade

2 - Solve problems involving decimals, percents, fractions, and proportions.

2.2 - Computing simple interest.

Seventh Grade

3.3 - Using percents to solve problems, including problems involving discounts, taxes, commissions, and simple interest.

Eighth Grade

1.4 - Applying proportional reasoning to application-based situations.

## 7-RP3

## Use proportional relationships to solve multistep ratio and percent problems.

New contentACOS 2009 CorrelationSixth Grade

- 2 - Solve problems involving decimals, percents, fractions, and proportions.
- 2.2 - Computing simple interest.

Seventh Grade- 3.3 - Using percents to solve problems, including problems involving discounts, taxes, commissions, and simple interest.

Eighth GradeCMP2 CorrelationBookInvestigationObjectiveResourcesFrom Harding Math Specialist

25% Sale-- http://map.mathshell.org/materials/tasks.php?taskid=358&subpage=apprentice -- Task asking students about a store whose sale prices decrease by 25% per week.My Humble OpinionSkills

- Use proportional reasoning to solve multistep ratio problems.
- Use proportional reasoning to solve multistep percent problems.

Sample problem situations- Simple interest
- Tax
- Markups
- Markdowns
- Gratuities
- Commissions
- Fees
- Percent increase and decrease
- Percent error

Very similar to 2003/2009 objective 3, with the addition of a few new types of problem situations.