Students will have guided practice, starting with assessing prior knowledge on scatterplots, line of best fit and correlation. The teacher will guide through inquiry-based learning on what is residual, how to find it and why it is used to check if the regression is a good fit. Students will work with a partner investigating the residual of the price versus seating of a soccer stadium and if and what the relationship is between the number of rows a fan is from the field and the price of their ticket.

### General Information

**Subject(s):**Mathematics

**Grade Level(s):**9

**Intended Audience:**Educators

**Suggested Technology:**Document Camera, Graphing Calculators, Computer for Presenter, Computers for Students, Internet Connection, Interactive Whiteboard, LCD Projector, Assistive Technology, Adobe Acrobat Reader, Microsoft Office, GeoGebra Free Software (Download the Free GeoGebra Software)

**Instructional Time:**65 Minute(s)

**Keywords:**Residuals, Residual Plot, Error, Best Fit, Line of Best Fit

**Instructional Component Type(s):**

**Lesson Plan**, Worksheet, Problem-Solving Task, Presentation/Slideshow, Educational Software / Tool

**Resource Collection:**

__FCR-STEMLearn Algebra__