Thinkabara

🧮 7th Grade · Math7.RP.A.3Unit 3: Percent applications

Tax and tip

Google Classroom

🎯 Objective: Students compute sales tax and tips.

Lesson outline

  1. Restaurant bill.
  2. Practice.
  3. Mental math tricks.
  4. Exit: 18% tip on $45.

Lesson 2 of 5 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

7.RP.A.3

Common Core State Standards for Mathematics, Grade 7 — typical US scope & sequence

🏁 Unit goals

  • Solve multi-step percent problems: tax, tip, markup, discount, interest, percent error

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

🎯 Practice: Proportional relationships💵 Tip calculator🧾 Sales tax calculator📚 All 7th Grade skills🎮 Learning games⚡ Capy Live class quiz

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More lessons in “Percent applications”

  1. Percent increase and decrease
  2. Tax and tip
  3. Discounts and markups
  4. Simple interest
  5. Percent error

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