Assessment

Bathtub Graph

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This Bathtub Graph assessment also includes:

Represent the relationship between independent and dependent variables through a modeling situation. The activity expects learners to graph the volume of water in a bathtub during a given scenario. The graph should result in two areas of constant rates of change and two rapid changes in volume.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Model the problem by filling a beaker with water and graphing the result
  • Give your classes manipulatives and/or props to explore the presented problem
Classroom Considerations
  • Expects an understanding of the relationship between independent and dependent variables as they relate to a graph
Pros
  • Includes an answer key and rubric that suggests important aspects to assess
  • Presents a problem that allows for multiple correct solutions
Cons
  • None
Common Core