 Oct 03, 2021
Math

### Math Monday: Scatter Plots and Linear Regression

Math Monday: Scatter Plots and Linear Regression

This Math Monday, we’re exploring the lesson Scatter Plots and Linear Regression from the Financial Algebra Checking Unit. If you want a deeper dive into this unit, sign up for Financial Algebra: Unit 2 Checking and Linear Equations, next Tuesday at 4 pm Pacific.

The Lesson

Students plot real-world data and observe patterns. Then, they learn about correlation and how to use technology to find a linear regression model.

Students have the additional support of an optional video walkthrough of the steps necessary to input data and complete a linear regression on Desmos. Then, students practice generating their own Desmos model using data on mobile banking trends over time. The Application Problems

This lesson closes with a set of leveled Application Problems that apply the core skill in a relevant personal finance context.

• Level 1 provides a scatterplot of ice cream sales by temperature and focuses on analyzing the given graph.
• Level 2 explores check cashing fees by generating a scatterplot of fees, analyzing the equation generated, and reflecting on a short video.
• Level 3 asks students to come up with plausible labels for a given scatterplot and to estimate a line of best fit. Then, students analyze data on hours worked and salary. Extend the Learning
MATH: Using Regression to Analyze Stocks is another great activity to teach regression, especially if you want students to practice finding linear regression equations on a standard calculator, rather than Desmos.

Interested in this resource? You might also enjoy FinCap Friday: Bye Bye Banks? or COMPARE: Overdraft Fees! 