Math knowledge for teaching fractions and decimals

No one can teach mathematics without knowing mathematics but not everyone who knows mathematics can teach it well. Below are two tasks about teaching fractions and decimals that would give

Math knowledge for teaching tangent to a curve

I am creating a new category of posts about mathematical tasks aimed at developing teachers’ math knowledge for teaching. Most of the tasks I will present here have been used

Math Teachers at Play Blog Carnival

Math  Teachers At Play- Blog Carnival #49 of Let’s Play Math is now live in TeachBesideMe. Go check-out the fabulous submissions and of course the photos and images. Mathematics for Teaching will

Teaching maximum area problem with GeoGebra

Remember that classic maximum area problem? Here’s a version of it: Pam wishes to fence off a rectangular vegetable garden in her backyard. She has 18 meters of  fencing wire which