International Journal of Computers for Mathematical Learning, Vol. 10, No. 3. (December 2005), pp. 251-258.
Instructional Science, Vol. 33, No. 1. (January 2005), pp. 73-95.
(1993)
The American Journal of Sociology, Vol. 94, No. 3. (1988), pp. 502-534.
International Journal of Computers for Mathematical Learning, Vol. 1, No. 1., pp. 95-123.
(1990)
Educational Philosophy and Theory, Vol. 36, No. 5. (2004), pp. 509-521.
Computers & Education, Vol. 34, No. 3-4. (1 April 2000), pp. 241-255.
(12 February 1998)
(07 July 2003)
(01 June 1970)
(2004), pp. 1279-1282.
(2003)
(2004)
Sci Am, Vol. 288, No. 5. (May 2003), pp. 60-69.
(23 September 1999)
(28 Feb 2005)
(17 Feb 2004)
(23 Jul 2003)
(19 Aug 2005)
(11 Apr 2005)
(17 November 2004)
(14 Feb 2006)
(2005), pp. 522-536.
Library Hi Tech, Vol. 23, No. 4. (January 2005), pp. 469-480.
SIGCUE Outlook, Vol. 4, No. 2. (1970), pp. 13-17.
The Journal of the Learning Sciences, Vol. 6 (1997), pp. 401-408.
International Journal of Continuing Engineering Education and Life-Long Learning (IJCEELL) (submitted)
Educational Studies in Mathematics, Vol. 22, No. 1. (1991), pp. 411-437.
(1991), pp. 199-214.
Mathematics Teaching, Vol. 82 (1978), pp. 44-49.
Mathematics Teaching, Vol. 142 (1993), pp. 6-10.
(2005)
(2004)
(1988), pp. 119-140.
(1994), pp. 3-40.
(2003)
ACM Computing Surveys, Vol. 21, No. 3. (1989), pp. 413-510.
Vol. 1 and 2 (1988), pp. 207-242.
Educational Studies in Mathematics, Vol. 33 (1977), pp. 259-281.
(2002), pp. 127-142.
(1997)
The Mathematics Educator, Vol. 11, No. 1. (2001)
(2003)
Vol. 2 (1993), pp. 41-48.
(1998)
(2005)
(1997), pp. 133-158.
(2005)
(2004)