## Learning Topics:

Percent and proportions with IS over OF, discount and sale price, simple interest, commission, sales tax, percent increase and decrease.

This page lists the **Learning Objectives** for all lessons in Unit 10.

**Percent and Proportions**

The student will be able to:

- Define percent, ratio proportion and equivalent fractions.
- Analyze percent problems to identify the given information and the unknown quantity.
- Assign a variable to represent the unknown quantity.
- Formulate a proportion to find the unknown quantity.
- Solve the proportion to find the unknown quantity.
- Explain the answer as it relates to the original problem statement.
- Recognize that the unknown quantity is different for each problem depending on how it is worded.
- Translate real-world problems into proportions involving percent.
- Apply percent and proportion concepts and procedures to complete five interactive exercises.

**Discount and Sale Price**

The student will be able to:

- Define percent, original price, rate, discount and sale price.
- Identify the rate from a real-world problem.
- Compute the discount.
- Compute the sale price.
- Describe the procedures for finding discount and sale price.
- Describe an alternate procedure for finding sale price and discount.
- Evaluate five interactive exercises with real-world problems.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply the procedures for finding discount and sale price to solve problems.

**Simple Interest**

The student will be able to:

- Define principal, interest, interest rate and time.
- Describe the formula for finding simple interest.
- Apply the formula for finding simple interest.
- Recognize the importance of converting time from months to years before applying the formula for interest.
- Recognize the difference between simple and compound interest.
- Compute simple interest.
- Evaluate five interactive exercises with real-world problems.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply the procedures for finding simple interest to solve problems.

**Commission**

The student will be able to:

- Define percentage, commission and straight commission.
- Identify the given information from real-world problems.
- Compute commission by applying percent concepts.
- Restate the formula for finding straight commission.
- Recognize that a commission can be earned or paid, depending on who is the seller and who is the client.
- Evaluate five interactive exercises with real-world problems.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply the procedure for finding commission to solve problems.

**Sales Tax**

The student will be able to:

- Define sales tax and tax rate.
- Describe how sales tax is collected.
- Compute sales tax by applying percent concepts.
- Describe the procedure for computing sales tax.
- Recognize that sales tax is included in the sale price in some countries.
- Evaluate five interactive exercises with real-world problems.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply sales tax procedures to solve problems.

**Percent Change**

The student will be able to:

- Define percent increase, percent decrease, and percent change.
- Examine how percent increase is computed in a real-world problem.
- Examine how percent decrease is computed in a real-world problem.
- Restate the formula for finding percent change.
- Identify the given information from real-world problems.
- Compute percent change from real-world problems.
- Distinguish between percent increase and percent decrease.
- Recognize that percent increase and percent decrease are measures of percent change.
- Evaluate five interactive exercises with real-world problems.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply percent change formulas and procedures to solve problems.

**Practice Exercises**

The student will be able to:

- Examine ten interactive exercises for all topics in this unit.
- Determine which formulas and procedures are needed to complete each practice exercise.
- Compute answers by applying appropriate formulas and procedures.
- Self-assess knowledge and skills acquired from this unit.

**Challenge Exercises**

The student will be able to:

- Evaluate ten interactive exercises with real-world problems for all topics in this unit.
- Analyze each problem to identify the given information.
- Formulate a strategy for solving each problem.
- Apply strategies to solve routine and non-routine problems.
- Synthesize all information presented in this unit.
- Connect percent applications to the real world.
- Develop problem-solving skills.

**Solutions**

The student will be able to:

- Examine the solution for each exercise presented in this unit.
- Identify which solutions need to be reviewed.
- Compare solutions to completed exercises.
- Identify and evaluate incorrect answers.
- Amend and label original answers.
- Identify areas of strength and weakness.
- Decide which formulas and procedures need to be reviewed from this unit.