I have done a project similar to this. It adds more rigor if students create their own equations and develop their own design. I usually have them create a certain number of each type of line, have them identify slope, y-intercept, etc. to cover more of what I am teaching on the concept.
This HUGE collection of 40 foldables will breathe some life back into notes on many Middle School Math concepts. Each foldable includes directions and pictures, as well as a variety of options for you when it comes to how complete you want the foldables to be.
Coordinate Pairs Four Quadrant Flippable- Ready to introduce your students to all four quadrants of a graph? Interactive Flippable with practice components to identify axis, origin and a point in each of the 4 quadrants.
Oh Christmas Tree: Slope Edition. This is a good tool to remember the different types of slope. I would have my students make these after we learned it in class as an activity to keep in their notebook.