29 references, page 1 of 3 Alcock, L.J. and Simpson, A.P.: 1998, 'Definitions in university students' perceptions of structure', Proceedings of the International Conference on the Teaching of Mathematics , Samos, Greece, pp. 19-21.

Asghari, H.A.: 2004a, 'Students' experiences of equivalence relations', in O. McNamara (ed.), Proceedings of British Society for Research into Learning Mathematics, 240), pp. 7-12.

Asghari. H.A.: 2004b, 'Organizing with a focus on defining. a phenomenographic approach' in MJ. Hoines and A.B. Fuglestad (eds.), Proceedings of the 28th Conference of the International Group for the Psychology of Mathematics, Vol. 2. 63-70.

Asghari, A. H.: 2005a, 'Examples: generating versus checking', in D. Hewitt and A. Noyes (eds.), Proceedings of the sixth British Congress of Mathematics Education held at the University of Warwick, Available from www.bsrlm.org.uk, pp. 25-32.

Asghari, H.A.: 2005b, 'A mad dictator partitions his country', Research in Mathematics Education, 7, (in press).

Bowden, J.A.: 2000, 'The nature of phenomenographic research' in J.A. Bowden and E. Walsh (eds.), Phenomenography, RMIT University Press. Melbourne. pp. 1-18.

Bum, RP., Appleby, J. and Maher, P.: 1998, Teaching mathematics, Imperial College Press, London.

Dienes, Z. P.: 1960, Building Up Mathematics, 3rd ed. (1963). 4th ed (1971). Hutchinson Educational, London.

Dienes, Z. P.: 1973, The six stages in the process of learning mathematics. NFER. Windsor.

Dienes, Z. P.: 1976, Relations and Functions, Hodder and Stoughton. London.