Percentages | Review Lesson
Students review the idea of percentages as a way to describe parts of a group of 100. They connect percent to familiar models such as 100 grids, sets of objects, and simple real-world examples. The lesson is designed as an advanced review with guided practice, partner discussion, and an exit assessment.
| Term | Definition |
|---|---|
| percent | A way to show how many parts out of 100. |
| whole | The complete group or amount. |
| part | A piece of the whole group. |
| hundred grid | A grid with 100 small squares used to show percent. |
| fraction | A number that shows parts of a whole. |
Display a 100 grid and shade 50 squares. Ask: “What part is shaded? What does 50% mean?” Review that percent means out of 100.
Look at the model, think aloud, and share prior knowledge using complete sentences.
Model 25%, 50%, and 75% on a 100 grid. Connect each to simple fraction language: 25 out of 100, 50 out of 100, 75 out of 100. Emphasize that the whole is 100 parts.
Choral respond, point to shaded parts, and restate each percentage in words.
Show a set of 20 counters and ask students to reason about how many would be 50% or 25% of the set. Use think-alouds to help students scale from 100 to smaller groups.
Work with a partner to solve each prompt and explain how they know. Record answers on mini whiteboards.
Give advanced review tasks with mixed representations: a shaded grid, a set of objects, and a short word problem. Prompt students to match each situation to a percent and justify their thinking.
Discuss with a partner, solve, and justify answers using math vocabulary.
Distribute a brief exit ticket with 3 items: identify the percent shown on a grid, fill in a missing part of a percent sentence, and solve one simple application question.
Complete independently to show understanding.
Review key ideas: percent means out of 100, and models help us see parts of a whole. Celebrate strategies used today and preview that percentages help us compare amounts.
Share one thing they learned or one strategy that helped them.
Students restate that a percent describes parts out of 100 and can be shown with models such as a hundred grid. End by asking students to name one percentage they can recognize quickly and one strategy they used to solve problems.
Exit ticket: Students identify a percentage on a hundred grid, complete a percent statement, and solve one simple application item. Teacher reviews responses to determine who needs reteaching or enrichment.