Gerrit Stols

This app will help you to visualize, understand and enjoy Circle Geometry. The imbedded GeoGebra app

Factorization is a key skill in school mathematics. The step by step examples will help grade grade

Number Systems is a key topic in school mathematics. This App will help school students to better un

This app creates the opportunity for Grade 8-12 students to drag, play and discover mathematics. Thi