Overhead Grids
I used to use overhead grids and do sample graphing directly on the overhead but I had to constantly clean the transparencies or throw them away. Now I found out that I can project the overhead on to a green or white board, work directly on the board and then simply erase the board. I make sure that the stand is free from being accidentally bumped by students. This method makes it so easy for students to participate in the graphing.
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