It is argued that acculturation, anomie, social distance, and perceived social distance rather than biological factors define a critical period independent of the age of the learner for second language acquisition. Suggestions for planning instructional strategies and selecting materials based on this hypothesis are given. (PMJ)

This paper contends that a person's readiness for academic learning should be based on his/her developmental readiness, not on chronological age requirements. Human beings develop at their own neurological rates (biological clock). The paper first cites research on a "sensitive learning period" in which learning is mastered in a more efficient…

A paradigm for learning economic concepts based on cognitive development and learning theory is offered as a guideline for teaching and research. Discussion is divided into two sections. The first section establishes the model's theoretical framework, which is based on two propositions. The first of these is that economic knowledge is not a fixed…

This guide for teachers and parents examines child development knowledge, the origins of developmental curriculum, and approaches to implementing such a curriculum in elementary schools. Part one discusses how children develop, the historical background of developmental curricula, the differences between age level and grade level, and the…