What does it mean to prove something? This is a question that I ask my Geometry students often and in different contexts. Early in the year, we work through Euclid’s Proposition 1 from Book 1 of The ...

This paper presents a semi-automated methodology for generating geometric proof problems of the kind found in a high-school curriculum. We formalize the notion of a geometry proof problem and describe ...

In this video, we provide essential "math help" by presenting a step-by-step "geometry proof" that all angles in "triangles" add up to "180 degree". This "math tutorial" will guide you through the ...