We had a test at the end of the week in AP Calculus, and it did not go well. One of the things that frustrated me was that many students struggled factoring a trinomial with an “a” term that wasn't 1. So I had a few students from Algebra 2 come in to show my AP Calc students how to factor by grouping (which is something I never even learned in high school), as an alternative to just figuring it out. This was great for everyone, and my knucklehead senior dudes were surprisingly very mature about this.

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