Day 61: Solidifying some methods

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Their assessment last week showed me that we needed to solidify some methods for calculating slope and y-intercept.  Many of them are able to calculate slope and y-intercept no matter what representation they are given (table, graph, situation, equation) but they were kind of all over the place.  So we started a little project for them to really hone in to the method in words and a visual example of the method.  I am really hesitant to force them to use the equations to calculate slope and y-intercept because they are really comfortable and successful with their strategies right now.  What to do….what to do???

Note: I know the last picture has a wrong answer in it.  However, this turned in to a great learning situaiton for this group of students.  They were asked to refer back to their strategy and they eventually got it right but I didn’t get to take a picture of the updated version.

 

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