The effectiveness of an experimental mathematics teaching program was investigated. Observational measures revealed that teachers implemented the treatment. Analyses of product data showed that students of treatment teachers outperformed those of controls. Thus, teachers and/or teaching methods exerted a significant difference on student progress…

Observations are offered on some of the problems that seem to relate to children's acquisition of basic skills and learning of mathematics. Some research and development options are suggested. Discussion of the problems is divided into the two areas "Instructional Program" and "Management of the Instructional Program." The first of these is…