In the spirit of creating mathematical routines (like Estimation 180 and Counting Circles), Here is my experiment with Graph Descriptions. Many of my students have trouble with graphs. I’ve noticed these particular struggles a lot:
- Trouble thinking about both the x and y values of particular points
- Misplaced 0 in the ordered pair for a point on either the x or y axis
- Miscounting when counting horizontal or vertical distances
- Counting boxes to measure a distance along a diagonal line
At the beginning, I plan to start with only points on a grid, but I want to build up to linear functions, quadratic functions, scatter plots, etc. and will try to post pics of the graphs I use. At least to start, I plan on asking “What do you notice?” and “What do you wonder?” I think this will give me chances to get all students involved, create some debate, build students’ communications and address some vocabulary along the way. Find the pictures below that I am using.