Here is a wall chart that explains the method that I use with my students.
The students practiced finding the slope of a line and comparing functions using my "Mini Table" method and my dry erase "Mini Table" Mat.
My "Mini Table" Mat
I also did a really cool "Solve It, Post It" Collaborative Group Warm-up to solidify what the students have been learning.
Here is the "Solve It, Post It" Warm-up:
Each "Team" was given a different card with a pair of points. Teams were to discuss and find the slope of the line through their two points using the "Mini Table" method.
Here are the cards. Each "Team" received one card.
After each "Team" solved their problem. They "Posted" their answer by putting their "Team" whiteboard on the board in front of their "Team" number. (Boards are turned so that the answers are not showing).
After all of the "Teams" had "Posted" their answers, I put up a slide with a graphed line with color-coded points. I told the students that each of their set of points were represented on this line. (It was color-coded to match the teams).
I asked the students, "Now knowing that all of the points that each of the "Teams" used to find the slope are on the same line, what should we see when I turn the boards around?"
It took some discussion and some good answers such as they should all be negative, but they finally determined that the slope on each of the boards should be the same.
I turned the boards around and....
This was a good lesson to help solidify the concept that I have been working on with the students.
Feel free to download my files and use in your classroom.... :o)
"Solve It, Post It" Warm-up Prompt ~ Download: PDF File - PNG File
Cards with Two Points ~ Download: PDF File
Thanks for stopping by and checking out my blog. I hope you were inspired.... :o)