An APOS analysis of natural science studentsâ€™ understanding of integration. (English. Spanish summary)

REDIMAT, J. Res. Math. Educ. 3, No. 1, 54-73, electronic only (2014).

1

From human activity to conceptual understanding of the chain rule. (English. Spanish summary)

REDIMAT, J. Res. Math. Educ. 2, No. 1, 77-99, electronic only (2013).

2

The development of geometrical concepts through design activities during a technology education class. (English)

Afr. J. Res. Math. Sci. Technol. Educ. 10, No. 1, 37-45 (2006).

3

A geometrical introduction to the method of completing the square. (English)

Learn. Teach. Math., No. 2, 7-9 (2005).

4

Factorisation. Looking for patterns. (English)

Learn. Teach. Math., No. 2, 42-43 (2005).

5

Implications from research for the teaching of the solution of polynomial equations. (English)

Pythagoras (Pretoria), No. 56, 17-25 (2001).

6