Tweet The semiotic square is a tool used for the structural analysis of relationships, developed by linguist Algirdas Greimas. We’re going to relate four different concepts in three different ways. First we want to rule out the incompatibilities. The diagonal lines represent a contradictory relationship. Easy and hard live on opposite ends of one spectrum, […]
Tweet Asking “What if?..” always opens up mathematical possibilities. But this hack is about scale analysis, ratio and proportion, and other spatial reasoning skills. Yet it also helps with general problem-solving and imagination. Photo sources: the skies; the hands; eye/mouth. It’s a remake of my more general mini-poster. I like this version better, because it has clearer visual […]
Tweet Would 7-year olds really use calculus? Wouldn’t they forget it all by the time they encounter calculus in school, if ever? We frequently revisit these questions as we continue to plan and lead Inspired by Calculus local math circles for 7-11 year olds. The issues of knowledge retention, use, and transference came up again […]
Tweet If you’re looking to teach kids about symmetry, a new app called Heart Collage is a great start! Where there is love there is life’s Facebook Page Available on Google Play and the iTunes Store, Heart Collage guides you through a series of photographs to create a composite image, using a system called integration. […]
