This is really a story of the unexpected beauty of mathematics. If you know me then you know I live in a #thinkingclassroom (via Peter Liljedahl) and love to #spiral curriculum (post about it). This post really speaks to those two ideas.  I am teaching grade 11 College math when this happened but I feel like this could be done in grade 9 or grade 10 as well. The goal was to review Sum of Squares ( my name for Pythagorean Theorem) Post I wrote about it kinda. Here was the plan: Random groups #VRG on #VNPS Give students this sequence of mixed numbers 1 1/3, 2 2/5, 3 3/7 ..read more

  Dominoes - Relationships between the Number of the Domino and Various Variables This has been a great activity for me over the years. Can just do Exponential Relations or add in Logarithms. Of course Dan Meyer Rocked it as a three act task here first. Dane Ehlert relates it the 5 practices nicely here. You should check his website out - pretty spectacular. And then this is my take on it in my spiraled activity based #thinkingclassroom. Lot's to unpack. Students watched this video and then were examined the relationship  between the number of the dominoe and so ..read more