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Justifying Function or Not a Function Notes

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1 Free Download of Justifying Function or Not a Function Notes
2 Updated Version of Justifying Function or Not a Function Notes
3 More Activities for Teaching Function vs Not a Function

I created this justifying function or not a function interactive notebook page to help model for my students how to write proper justification sentences. I always get so frustrated when students will say that something is a function or not a function without any explanation.

As we’ve been reviewing for the EOI these past few weeks, my students are still answering with justifications.  Yay!

justifying function or not a function

The check boxes make it seem a little less scary, I think.

justifying function or not a function

Free Download of Justifying Function or Not a Function Notes


Justifying Function or Not a Function (PDF) (2266 downloads )


Justifying Function or Not a Function (Editable Publisher File ZIP) (1240 downloads )

Updated Version of Justifying Function or Not a Function Notes

In 2018, I gave this set of justifying function or not a function notes a bit of a face lift!

Notes in interactive notebook on justifying whether a relation is a function or is not a function


Justifying Function or Not a Function Notes 1718 (PDF) (1628 downloads )


Justifying Function or Not a Function Notes 1718 (Editable Publisher File ZIP) (1076 downloads )

More Activities for Teaching Function vs Not a Function

Sarah Carter teaches high school math in her hometown of Coweta, Oklahoma. She currently teaches AP Precalculus, AP Calculus AB, and Statistics. She is passionate about sharing creative and hands-on teaching ideas with math teachers around the world through her blog, Math = Love.

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11 Comments

  1. This is brilliant! Thank you so much. I'm going to have my grade 8's do more of these kinaesthetic activities with the foldables for their last unit for the year. For science I have them doing Cornell note-taking. For maths, this will be brilliant!

  2. I have never used interactive notebooks but have been interested. How much time does it take for the kids to tape/glue things in? We have only 53 minute periods and a very wide range of ability levels in each class.

    1. We have 52 minute periods. Taping/gluing can take a few minutes. I find that if I get through the lesson and let kids tape/glue at the end that they tend to waste less time than if I let them tape/glue before we start the lesson. They use their notebooks for reference A LOT, so I consider the taping and gluing a worthwhile investment.

  3. Could you please post a copy of your Mastery Tracking sheets for each unit? I love it!

  4. I'm sorry if this is a duplicate comment, but I just wasn't sure if my last one went through. I wanted to say thank you so much for sharing your work! I am going to use the Function Machine foldable today in class. Have a good one!

  5. I love these! I wish I'd come across them before teaching this already. I think out would have been great to put the independent things on the left and dependent things on the left since it looks like a T-chart on your page. I've been trying to do more interactive things, but the struggle is real! Thank you for the idea of having them cut and glue at the end!

  6. This is awesome! I haven't taught Algebra 1 in quite a few years and I have committed to using and INB. My students love it! I've been making my own and using other resources. This is everything I've been looking for all in one place. Thank you for sharing!

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