Effective curricular support systems must include resources supporting high-fidelity activity implementation. We examined the frequency of pre-kindergarten teachers' online demonstration video viewing and its association with fidelity of implementation of a math and science curriculum. We found a range in frequency of video viewing and a positive…

"Active learning" has been used to describe classrooms that have varied widely with respect to instructional topics, age of learners, and the procedures used to operationalize the general notion of the term. In most cases, the specific variant of active learning under investigation has been more effective than the particular control used…