Unit 6, Lesson 10
Solving Multi-step Percentage Problems
Accelerated 6
Preparation
Lesson Narrative
In this lesson, students consolidate what they have learned over the last few lessons. They solve a variety of multi-step percentage problems involving taxes, tips, discounts, and commissions, including problems involving fractional percentages. The main activity uses the Information Gap routine. To obtain all the necessary information, students need to persevere in asking questions (MP1) and to communicate precisely (MP6).
The last activity is optional because it provides an opportunity for additional practice with finding the percentage of the increase or decrease.
- Determine what information is needed to solve a problem involving sales tax and discounts. Ask questions to elicit that information.
- Explain (orally) how to calculate the percentage given the dollar amounts before and after a sales tax, tip, or discount.
Let’s solve more problems about sales tax and discounts.
Required Materials
Activity 2
Required Preparation
None
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