Informally Fitting a Line

Discover how trend lines can be useful in understanding relationships between variables with a lesson that covers how to informally fit a trend line to model a relationship given in a scatter plot. Scholars use the trend line to make predictions to finish the module.

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CCSS: Designed
Instructional Ideas

  • Have pupils research data on the Internet to draw scatter plots and trend lines
Classroom Considerations

  • Drawing of trend lines is informal, so answers may vary
  • Learners need knowledge of linear relationships and trend lines from previous lessons
  • Eighth lesson in the series of 16
Pros

  • Gives scaffolding tips throughout the lesson
  • Teacher guide indicates where to look for mathematical practices
Cons

  • None
Common Core