Conceptual database design is a difficult task for novice database designers, such as students, and is also therefore particularly challenging for database educators to teach. In the teaching of database design, two general approaches are frequently emphasized: top-down and bottom-up. In this paper, we present an empirical comparison of students'…

Training methods naturally employed by trainers were analyzed and compared to systematic structured training procedures. Trainers were observed teaching retarded subjects how to assemble a bicycle brake, roller skate, carburetor, and lawn mower engine. Trainers first taught using their own (personal) method, which was recorded in terms of types of…

Based on results from research on children's spelling, it has been established that spelling errors produced by ESL students in this study of 6th grade students parallels the errors of native speakers of English in the same classroom. The ESL students are also impacted by cross-linguistic influence of the phonology of their native tongue. This…