On the analysis of indirect proofs: contradiction and contraposition. (English)

Aust. Sr. Math. J. 30, No. 1, 55-64 (2016).

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Cognitive development of proof. (English)

Hanna, Gila (ed.) et al., Proof and proving in mathematics education. The 19th ICMI study. Berlin: Springer (ISBN 978-94-007-2128-9/hbk; 978-94-007-2129-6/ebook). New ICMI Study Series 15, 13-49 (2012).

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Ponder this. (English)

Aust. Sr. Math. J. 23, No. 2, 63 (2009).

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Notes on “perpetual question” of problem solving: How can learners best be taught problem-solving skills? (English)

J. Korea Soc. Math. Educ. Ser. D 12, No. 3, 179-191 (2008).

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Inquiry activities in a classroom: Extra-logical processes of illumination vs logical process of deductive and inductive reasoning. A case study. (English)

Novotná, Jarmila (ed.) et al., Mathematics in the centre. Proceedings of the 30th annual conference of the International Group for the Psychology of Mathematics Education, PME, Prague, Czech Republic, July 16‒21, 2006. Vol. 1-5. Prague: Charles University, Faculty of Education. Part 5, 441-448 (2006).

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