Faengsrud founded House of Math in 2006, bootstrapping it from a one-woman tutoring service into a platform with over 2.6 million users.

After years of assigning the kind of homework she had done as a student and observing students’ disengagement with it, a teacher overhauled how she assigns math practice.

Far too many students enter math class expecting to fail. For them, math isn’t just a subject–it’s a source of anxiety that chips away at their confidence and makes them question their abilities. A ...