Plato's rationale for his ideas on teaching and the problems he confronted in convincing other educational leaders of the validity of his beliefs are discussed. (CK)

Much of the content was presented at the TESOL Convention, New Orleans, Louisiana, March 1971, and is derived from the author's dissertation Experimental Steps to Ascertain Reliability of Diagnostic Tests in English as a Second Language" (Columbia University). (VM)

An appraisal of performance contracting in an upper income school district. (JF)

Reports on an educational conference held in Toronto stressing spontaneous and expressive alternatives to existing educational patterns in public education. (Author)

Advocates that information on student aptitude for foreign language learning be used not, as in the past, for determining the best general method for language teaching but rather for determining the best teaching method for particular kinds of students. (FB)

Changes in the British education system are discussed and the weaknesses of the British and American systems are seen to result from common causes. These causes are described as the hours spent watching television, children conditioned to expect entertainment, and educational experiments including open classrooms and "new math."…

Practical methods for implementing true experimental designs in evaluation settings in which such designs are rarely used are presented. Particular attention is paid to educational settings. (Author/JKS)

Advantages and disadvantages of nonexperimental paradigms in mathematics education are discussed. Suggestions are made for action toward establishing such designs as quality research. (MP)

Recounts a study documenting the actual learning trajectory of the classroom community and the diversity in eighth-graders' reasoning as they participated in the classroom mathematical practices that constituted this trajectory. Describes the learning of the research team by documenting conjectures about students' statistical learning and the…

Describes several ways to demonstrate the relationship between various aspects of auditory stimulation and sensation. Discusses the equipment required to hear and to visualize simultaneously a variety of auditory signals. States that these demonstrations allow students to learn more about sensory processing in general and auditory function in…

An experiment was performed to investigate the effects of practice and spacing on retention of Japanese-English vocabulary paired associates. The relative benefit of spacing increased with increased practice and with longer retention intervals. Data were fitted with an activation-based memory model, which proposes that each time an item is…

Two experiments explored whether children's correct answers to counter factual and future hypothetical questions were based on an understanding of possibilities. Children played a game in which a toy mouse could run down either 1 of 2 slides. Children found it difficult to mark physically both possible outcomes, compared to reporting a single…