There are plenty of fish in the sea, but only a few good resources on regression. Young mathematicians first perform a linear regression analysis on provided weight and length data for fish. After determining that a linear model is not appropriate, they consider how to transform the response variable or use a polynomial regression to identify a better fit.

Concepts

math modeling, regression analysis, polynomial functions, residuals, linear regression

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Instructional Ideas

• Have pupils research and analyze other data sets of interest
  

Classroom Considerations

• Technology for creating scatter plots and conducting regression analyses is necessary
• Scholars must have experience with linear regression and have knowledge of polynomial functions
  

Pros

• Includes a student handout
• Provides very detailed and helpful information for facilitators
  

Cons

• None

Common Core

HSS-ID.B.6.a