Valerie's Math Class

Who doesn't love dogs?!!! In this activity, students will investigate whether the rule of 7 human years = 1 dog year. Students will learn how to do a linear regression using a TI calculator to create the function. I did this lesson AFTER we did linear functions from a table. So when they felt comfortable doing this by hand, I was ready to show them this. We use the LINEAR REGRESSION tool when the change is not the same each time. Students loved this activity and were able to relate to it because

I used this as the INTRO activity for solving linear equations. It is basic word problems where students naturally come to realize they already search for a "missing variable" in life all the time! I LOVE that students get the WHY behind solving linear equations right away when you introduce through this. In addition, students realize that ONLY ONE solution will make a scenario make sense - hence why we can substitute back in to confirm our answer. I also then introduced NO SOLUTION and INFINITE