Manifesto on the Teaching of Mathematics

Being a declaration of the principles on which these works are based.

Intuitive Infinitesimal Calculus

Being a textbook instantiating the aforementioned philosophy.

History of Mathematics

A brief introduction including many readings from original sources.

Intuitive Geometry

A brief course for visual thinkers.

Blog

Containing assorted remarks on the foregoing subjects.

About

Who is the illustrious author of these perceptive writings?