What linear equation will fit this data, and how close is it? Through discussion and partner work, young mathematicians learn the procedure to determine a regression line in order to make predictions from the data. 

Concepts

scatter plots, line of best fit, linear modeling, prediction equation

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Additional Tags

math

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Instructional Ideas

• Encourage learners to practice their new skills with additional data for homework or extension activities

Classroom Considerations

• Requires graphing calculators or calculators that can calculate the least-squares regression line
• More time may be necessary due to technology profeciency of the class
• Lesson 14 in a 20-lesson module

Pros

• Provides calculator directions on determining the least-squares regression line
• Makes connections from regression lines to predictions and residuals

Cons

• None

Common Core

HSS-ID.B.6.a HSS-ID.B.6.b HSS-ID.B.6.c HSS-ID.C.7 MP4