Source: Math Arguments 180 – Day 24: Arithmetic Challenge We tried this problem a few times and thoroughly enjoyed it. We created our own maze, took the operation-number pairs from the original version (Copyright(c) 2003 Ryosuke Ito), added a few extra pairs to fit our larger maze, randomized the operation-number pairs, and started brainstorming strategies. … Continue reading 5. Maximaze

Highlight 1: 25 Solutions 21 students, 3 math teachers, and 1 assistant principal submitted successful solutions. Highlight 2: I was one of them. I first saw this problem in grad school, and after trying it for a while, I got rather frustrated. My classmates were trying it too, and I wasn't entirely convinced that the … Continue reading 2. Pentagram

The problem that started it all! This problem was a huge hit with our students, and we actually got enough submissions to sort through them, determine the winners, and post their solutions for all to marvel at. Important note: I suggest that you stop here and try the problem if you haven't already. The solutions below could … Continue reading 1. Split 25

Step 1: New Year, New Culture Entering my second year of teaching, I had no idea what our department culture would be like. We lost several seasoned veteran teachers and replaced them with teachers who were somehow even younger than me. I had discovered math-ed blogs over the summer, and throughout the fall, our conversations … Continue reading 0. Origin Story