22 n the right circumstances, new technologies adopted by members of a community will spread by diffusion. One of the most robust findings about innovation diffusion is that shifts from one technology or product to another follow a sigmoid, or cumulative normal, distribution. 1–3 Thus, the rate of adoption usually starts low, accelerates until about 50… (More)
Would a school system allow a person with only an eight-grade education to become an English teacher? Would a self-taught math teacher be given full responsibility for the high school math program? The answers to these questions are obvious to everyone: to become a subject-matter specialist school teacher, one must demonstrate competency by fulfilling state… (More)
The national trends regarding the retraining of secondary school teachers in a computer science discipline are examined. Recommendations and guidelines are offered in this ACM/IEEE Task Force report.