An interesting graphical interpretation of complex roots is presented, since it is probably unfamiliar to many mathematics teachers. (MNS)

Two models are presented. The first assumes that air resistance is proportional to the velocity of the falling body. The second assumes that air resistance is proportional to the square of the velocity. A program written in BASIC that simulates the second model is presented. (MP)

This study extends research of college students' comprehension of implication into the area of conjunction and disjunction. The results indicated that the majority of the students did not comprehend conjunction and disjunction well enough to correctly respond to most subtest components. (MP)

This study compared a large class instruction procedure with conventional small class instruction for a mathematics course for prospective elementary teachers. (MP)

A mathematical treatment of the relationship between driving speed and fuel efficiency is presented. The material involves applications of exponentials, logarithms, and elementary calculus, and is intended to be enrichment material for secondary and lower college mathematics classes. (MP)