2019-06-202019-06-201965Questions and discussion [with Harold Fletcher, John Flavell and Leonard Sealey]. (1965). Symposium: A Journal of Education for Southern Africa, pp. 84-89https://hdl.handle.net/10539/27439enUniversity of the WitwatersrandLesson preparation (mathematics education)Calculators in mathematics education – 1965Programmed instructionArithmetic and mathematics for today (vacation course, 1964)Mathematics – Educational tests and measurementsQuestions and discussion [with Harold Fletcher, John Flavell and Leonard Sealey]Article