Percentages | Centers
Students rotate through short, hands-on centers to review and apply percentage skills, including percent of a number, percent change, discounts, tax, commission, and interpreting percentage information in real-world contexts.
| Term | Definition |
|---|---|
| Percent | A ratio out of 100. |
| Rate | A comparison of two quantities with different units. |
| Base | The original amount in a percent problem. |
| Percent change | The amount a value increases or decreases, expressed as a percent. |
| Discount | A reduction from the original price. |
| Markup | An increase added to the original price. |
| Commission | Money earned as a percentage of sales. |
Introduce the goal of the lesson and review key percent formulas and vocabulary. Explain center expectations, timing, and how students will record answers.
Listen, review notes, and ask clarifying questions.
Provide problems requiring students to find a percent of a quantity using mental math, equations, and calculators as needed.
Solve problems and show work on the recording sheet.
Set up real-world shopping and restaurant scenarios that require finding final prices.
Calculate total cost and justify each step.
Provide comparison problems using increases and decreases in prices, population, test scores, or data.
Determine percent change and label increase or decrease.
Give applied business problems where students calculate earnings or selling prices from percentages.
Work independently or with a partner to solve each task.
Use tables, charts, or short scenarios that require interpreting percentage information and making conclusions.
Answer questions and explain what the percentages mean in context.
Review answers to a few representative problems and highlight common strategies and errors.
Share solutions, compare methods, and complete any unfinished responses.
Have students complete a brief exit reflection by naming one percent strategy they used successfully and one problem type they still find challenging.