At the beginning of December this year, I got an email reminding us about the annual door decorating contest. At first I brushed it off - I had to finish my unit on Systems of Equations before the holiday break, and there was no wiggle room for art projects. Then I started feeling like a Grinch and scoured Pinterest for something I felt like I could pull off. No way could I compete with the art teachers who would have hand-painted murals on their doors, but I wanted to come up with something festive, fun, and cheap and that would not have me losing valuable instructional time. I found this and thought it looked within my realm of art ability. Festive - check, it's a Christmas tree; Fun - sure; Cheap - absolutely, the copy room has plenty of green paper. But I still wanted to make sure I was not stuck making and hanging all those rings.
So I made the rings into Systems of Equations problems! The students each had four problems to solve - two using substitution and two with elimination.
After they solve a problem, they find their solution and flip it over to find their next problem.
Their last problem links to someone else's, creating a long chain. Then the chains make the branches of the Christmas tree!
My Christmas in July gift to you is that you can pick it up for $1 through Tuesday - when door decorating season comes around, you will be glad you have it! Check out more Christmas in July deals by searching #ChristmasMATHinJuly