Reflection: Lesson Planning How Much for a Used Car? - Section 2: Investigation


I ask my students to make both graphs by hand. I do use graphing technology quite a bit in my class, but for now I want students to practice plotting points by hand and determining scale. A nice follow up activity to this one is to have students use technology to create the scatter plots and then determine the correlation coefficients.

  Graph by hand or use technology?
  Lesson Planning: Graph by hand or use technology?
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How Much for a Used Car?

Unit 5: Data and Statistics
Lesson 11 of 14

Objective: SWBAT create scatterplots to explore the relationship between age or mileage and the selling price of a used car. SWBAT draw a line of best fit, determine an equation for the line, and interpret the correlation coefficient.

Big Idea: How can you determine a fair selling price for a used car? Students use scatterplots, lines of best fit, and correlation coefficients to predict an appropriate selling price.

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2 teachers like this lesson
Math, Statistics, Line of Best Fit, correlation, scatterplot, 9th grade, 10th grade
  60 minutes
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