Observations

Videocourse is effective

Between 88% and 92% during each of three semester respond that they a videotaped delivered course to a comparable traditionally delivered course.

Teachers cite the flexibility of "attending" classes, not having to deal with transportation/parking problems, and ability to "try-out" ideas while tape is stopped as strengths.

Teachers find algebra strand emphasizing algebra manipulatives (Lab Gear) to be the strongest, most useful part of course.

Grades 7-12 teachers need more exposure to probability and statistics

• Difficult with combinatorics/counting problems

• Misconceptions involving sampling and the nature of randomness

Elementary/middle grades teachers more receptive to formulas defined recursively compared to secondary teachers who prefer closed-form.

Grades 7-12 teachers struggle with three dimensional representations and transformational geometry.