One of the many problems the kids worked on today is below. What I enjoyed most about this problem is that two of my students worked right through frustration and obtained the correct solution.

I jumped in while the students were struggling to model how I would try and find the possible boundaries for the value of the sum.

It was satisfying to work through what the students had done and discovering their work was correct. I was so focused on the work I totally missed the students' guerrilla addition to my meeting announcement. "**Be there... or be taken to the second power!**"

aaberg

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