Concept of history aspects of functions and their representations by diagrams, algebraic...

Simplicial homology and the Euler-Poincaré characteristic

Difference equations cobweb dynamics and adaptative-adjustments

A study of three classic problems of euclidean geometry

Matrices and problem solving

A study on optimization of real functions of several variables: theory and appli...

Mathematics proofs in high school: a case study

A study on graph theory and the four color theorem

Activities on inverse problems in pre-calculus

Numbers: some playful activities