Thanks for the Tip! Using Percentages

Subject: Math

Lesson Length: 30 - 40 mins

Topic: Ratios and Proportional Relationships; Ratio and Percentage

Grade Level: 7

Standards / Framework:

Brief Description: Students will use percentages in order to determine how much to tip.

Know Before You Start: Students should be familiar with solving multi-step problems involving ratios and percentages. This could serve as an informal assessment mid-unit.


  • Have students read the sample comic and work through the steps needed to solve Cirrus’s tipping problem. Regroup as a class to discuss answers.


  • Engage students in a discussion about what a tip is and why we give them.

    • 20% for superior service.

    • 15% for adequate service.

    • 10% for unsatisfactory service.

  • Ask students for different real-life scenarios where they or their parents have provided someone with a tip.

  • Students will create a five-panel comic telling a story about a situation where they need to provide a tip. Students should include:

    • The scenario that requires a tip, e.g., restaurant, hair cut, car wash, nail salon, Uber ride, etc.

    • The bill total before tip.

    • The tip percentage.

    • The tip amount.

    • The total bill amount including tip.


  • Share and discuss the completed comics.


  • Allow students to use the speech-to-text feature.
  • Allow students to use the voiceover feature to read their comics aloud.
  • Provide sentence frames for the story. 

  • Allow students to work in pairs or groups as needed.

  • Provide the option for ELL students to tell the story in their home language.

  • Provide the bill total for students as needed.


  • Comic to print or display: Comic.

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