Julie Morgan posted as part of #MTBoS about Challenge Grids about a week ago and as a second year teacher currently teaching all collaborative classes I soaked the idea right up. It was crazy easy to create (I mean, all you do is take a worksheet with a bunch of “boring problems”) and it saved a lot of paper (which is something I’m really trying hard to stop wasting).

As a class we worked through one problem, solving by factoring and using the quadratic formula and checking the answer by graphing. Students were at their desks with dry erase markers and worked on these problems on their desks. I walked around and would answer questions they had and checked their answers. The student that received the most points will get a piece of pie tomorrow – I’m always talking about making food so most of them are interested in trying it.

Julie had mentioned having a better mix of problems in her original post, so I made sure that I had more medium problems than easy or difficult ones. The only other thing I would do next time is give students a minimum number of problems to complete or a minimum number of points they needed to earn because a couple of students were perfectly content completing the 4 easy problems and stopping there… this isn’t their first time seeing quadratics so I should be expecting them and encouraging them to push themselves into the problems that require more work. But I will definitely be using this idea again in the future!

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This is awesome. Recently I put together a similar activity with three different levels of problems. Once a student get at least 2 of the problems in a given level correct (there were 3 total in each level), they could move on to the next level. The goal was to reach and complete 2 level three problems. That said, I think I like the idea of accumulating points better!

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