At the beginning of the year, CScope has you introduce inverse functions. I forget the reasoning behind this (its summertime, I'm not at my peak like during school) but I know it does help us compare domain and range and study different functional relationships. The kids didn't like inverse functions at first, but once they saw the characteristics that helped them identify inverses, they were all about it.
Here is the four corner model we did as an example of inverse functions. This one is actually complete (woo!) and that is because we worked on it near the end of class. I finished the model during my prep period and then took a picture of it so the kids could finish theirs. If I had a promethean, I'd do a slow reveal as they worked on the different parts but instead, I posted and we discussed as they compared their copy to mine.
The kids are starting to get kinda fuzzy as to whether or not they like doing the four corner at this point but I press forward explaining the different representations and how they are all modeled for us on one sheet instead of being all over. They agreed to give it a try again for the next function model.
If you'll notice, in the bottom right corner, I have more information this time. This is because we are studying the actual function and not a comparison between relations and functions so there is more involved with the analysis.
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