Friday Afternoon Lifesavers – the Teacher’s Best Friend; Part 7, Twins, an Exploration in Congruence and Symmetry
Friday Afternoon Lifesavers are exactly what they sound like: at the end of the week when you and your students are running out of gas, these activities come to the rescue. They are mathematical, engaging, fun, and give the teacher a much-needed break. One way to help kids become better problem solvers is to pose [...]
KenKen Conundrum – Solution of Permutations on a 4×4 Grid
We have the solution to the KenKen Conundrum posed recently. I asked my students to solve the following problem, and several of them succeeded. The original question was, “How many different arrangements (permutations) of the integers 1, 2, 3, 4 are possible in a 4×4 grid such as KenKen? Several people commented to the post, [...]
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