Pre-Algebra Problem: The Wave Pool (Expressions, Tables, and Graphs)
About This Product
This lesson is an excellent addition to a pre-algebra unit in grades 6 or 7 to help show students a real-world application of using expressions, tables of values, and graphing to solve a simple, everyday financial literacy decision.
Students are tasked with deciding how to pay to visit a new wave pool in the neighbourhood. They can pay a flat monthly fee or pay a smaller fee and then pay a small amount each time they go. The trick will be determining how often they are likely to go each month.
Students get to:
Analyze a realistic scenario
Complete two tables of values
Write a pattern rule in words and turn it into an expression with a variable
Create a simple line graph to compare the two options visually
Explain their decision in words using evidence from their mathematical work
This lesson can be used in various ways: it can be used during full-class instruction or smaller group activities. It could be regular classwork, a homework assignment, or even a summative assessment. I liked to have students complete it near the end of our algebra unit to assess skills before the unit test and to have as an artifact for parent-teacher conferences.
An extension challenge is offered that is specifically designed for early finishers. A complete answer key is also included for easy marking out of twenty points.
Grades to Use With:
This lesson is designed for upper elementary or middle school students in grades 5-7. It could also be used in high school special education classrooms.
What's Included:
7 Page PDF with three page student assignment, title page, and complete answer key.
If you enjoy this algebra activity, check out others in my store:
Modelling Equations: Visual Balance Scales
Independent and Dependent Variables in Grade 6 Math: Hockey Math
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