CTE = TE(n) + TE(n-1) + ... + TE(1)
= ITE(n) + (1+a) ITE(n-1) + (1+a+a*2) ITE(n-2)+ (1+a+a*2+...a*(n-1)) ITE(1)
Design Problem:
Select the degree of interaction of each class period
DOI(i) such that cumulative teaching effectiveness CTE is maximized,
subject to the constraints that 1) the teaching effective TE(n) for every
class period is above a threshold b, and 2) the total cost of a class is
below a threshold c.
Hypothesis: The distance learning strategy that achieves the maximum average teaching effectiveness with a cost constraint is the hybrid distance learning stragety.