## Reflection: Rigor Construct a line of best fit - Section 2: Play of the Day

This year, I prepared a select group of 8th graders to take the high school Algebra I Regents exam, for the first time aligned to the Common Core.  One of the additional standards was to be able to contruct a formal (not informal) line of best fit using a graphing calculator.

The attached lesson can be a resource to use in teaching this, if so desired.

Rigor: Finding the line of best fit using a graphing calculator

# Construct a line of best fit

Unit 9: PATTERNS OF ASSOCIATION IN BIVARIATE DATA
Lesson 2 of 7

## Big Idea: Spiral students' understanding of bivariate data and linear functions by constructing a line of best fit.

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Standards:
75 minutes

### Jeff Li MTP

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