Lemonade Stand Success: Multiplying Profits
Students will apply multiplication strategies to solve real-world problems related to running a lemonade stand, calculating profits and quantities. They will explore different multiplication methods and understand how to use them effectively in business scenarios.
Essential Question
How can we use multiplication to calculate profits and solve real-world problems related to running a lemonade stand?
Grade(s):
- 5
Subject(s):
Recommended Technology:
Other Instructional Materials or Notes:
Materials:
- Whiteboard or projector
- Markers or pens
- Worksheet: "Lemonade Stand Profits" (linked in the resources tab)
- Paper and pencils
- Optional: Play money, calculators (for checking answers)
Lesson Progression
(1) Introduction (10 minutes):
Engage students by asking if they've ever run a lemonade stand or bought lemonade from one.
Discuss the different math skills needed to run a successful lemonade stand (e.g., calculating costs, profits).
Introduce the essential question and explain that they will be using multiplication to solve lemonade stand problems.
(2) Direct Instruction and Modeling (15 minutes):
Present a sample word problem (e.g., "A lemonade stand sells 5 cups of lemonade at $1.25 per cup. How much money did they make?").
Model different multiplication strategies:
Standard algorithm
Area model
Partial products
Explain the steps clearly, emphasizing place value and carrying over.
Show how to set up the problem and label the answer with the correct units (e.g., dollars).
(3) Guided Practice (15 minutes):
Present a new word problem. For example:
You decided to offer a 'Lemonade & Cookie Combo' deal. Each combo includes one cup of lemonade and two cookies. You sold 9 combos. The lemonade costs $1.25 per cup, and each cookie costs $0.65.
Part 1: How much did you earn from the lemonade sales in the combos?
Part 2: How much did you earn from the cookie sales in the combos?
Part 3: What was your total revenue from selling the 9 combos?
Have students work in pairs or small groups to solve the problem using a strategy of their choice.
Encourage them to discuss their strategies and explain their reasoning.
Circulate around the room, providing support and asking guiding questions.
(4) Independent Practice (20 minutes):
Distribute the Lemonade Stand Multiplication Student Performance Task.
Have students solve the problems independently.
Encourage them to show their work and label their answers.
Optional: Allow students to check their answers with calculators.
(5) Wrap-up (10 minutes):
Review the essential question.
Have students share their solutions and explain the strategies they used.
Discuss how multiplication is used in real-world business scenarios.
Teacher Notes
differentiation: Use smaller numbers in the word problems. Provide multiplication charts or tables. Break down the problems into smaller steps. Allow students to use manipulatives (e.g., base-ten blocks). Provide partially worked problems.
extension: Use larger numbers or multi-step word problems. Challenge them to create their own lemonade stand problems. Introduce problems with decimals.
Standards
Assessments
Use the student performance task linked in the resources tab to assess student learning outcomes.