Cute trick #1 is an oldie but a goodie. If the a value is negative, the graph is opening down, so "frowning." Negative=frown, so that's should be an easy one to remember.

Cute trick #2 is inspired by my kids last year who struggled with the idea of vertical stretch and shrink. They so wanted to talk about horizontal stretch and shrink when they viewed graphs, but that's a bit backwards since an equation in the form y = 3x^2 has an

*a*value greater than 1 which they understood to be an increase in size. To that end, I did a little demo today in MS Word with clip art pigs. I started with three equally sized pigs. I kept the "parent" the same. I changed the other two pigs based on

*a*values of 2 and 1/2. Tonight, I added the annotations and tomorrow this will be on my wall.

What sorts of tips and tricks do you share with your students to make graphing easier?

Mathematically yours,

Miss B

Love this!!! Thank you Mrs. B

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