The instructional components of mediation, a teaching technique used in dynamic assessment, were evaluated with 100 four-year-old children attending daycare or preschools in London, Ontario. The effects of familiarization with task materials, task-specific rule teaching, and elaborated feedback were assessed using a pretest-posttest design.…

An experimental study compared the instructional effectiveness of Logo programming, commercially available software designed to aid composition and problem solving, and traditional teaching methods for low socioeconomic status first-grade students. Both software environments enhanced problem solving performance for a novel task, but Logo was most…