Yesterday’s Math 216 activity brought together several of my favorite teaching ideas: challenge cycles, visual thinking, and mobile learning. We’re starting our unit on descriptive statistics, which usually means finding averages and standard deviations and making boxplots and histograms. We’ll get to all that, but in an effort to create a “time for telling,” I wanted to start the unit with a data visualization challenge that was just a bit beyond what the students were ready for. Read More »