Key points are not available for this paper at this time.
Ronald W. Henderson, Edward M. Landesman, Iris Kachuck, Computer-Video Instruction in Mathematics: Field Test of an Interactive Approach, Journal for Research in Mathematics Education, Vol. 16, No. 3 (May, 1985), pp. 207-224
Henderson et al. (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: