I'm working on stations for review. One station will be the following "odd one out" exercise:

I look forward to hearing students' reasonings ... and I wonder if they will have chosen a function with a reason that I have not yet identified!

We are about to wrap up our introductory unit on functions. Our big ideas in the unit are understanding function notation, being able to write domain and range in set and interval notation, recognizing parent functions and their attributes, and transforming parent functions (moving monsters as well).

The instructions say, "Three of the following functions – A, B, C, and D – have something in common. The other one differs from them in some way. Which one does not belong? Give a reason. Several answers may be possible, but for different reasons. Can you find more than one possible choice?"

I'm working on stations for review. One station will be the following "odd one out" exercise:

I look forward to hearing students' reasonings ... and I wonder if they will have chosen a function with a reason that I have not yet identified!

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Do you have more of these to share for high school math?

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