Defines five levels between concrete and formal operation in the development of the concept of controlling variables. The sample, methodology and research on which the work is based is described in SE 519 500. (CP)

This study tested certain implied predictions regarding conceptual learning at each of four sequential levels of development: concrete level, identity level, classificatory level, and formal level. For this purpose, scaled batteries to assess the level of conceptual development of children, kindergarten through high school, were constructed and a…

Reviews theoretical frameworks and psychological processes underlying the perception and cognition of musical understanding. Suggests unifying ideas and processes based on a developmental learning framework applied to teaching methods and curriculum. Supplies six guidelines for music education practitioners who are sequencing learning activities…