Posner's theory of conceptual change forms the background for this study which focuses upon conceptual ecology, specifically upon the heuristics children appear to employ in sense-making. The study focuses upon two children who demonstrate remarkably different sense-making heuristics; a recognizably scientific one and one that involves the…

This study consolidated observations of teachers in an institute setting designed to facilitate science learning content through performing science processes and asking questions related to self-perceived conceptual difficulties. The subjects were 11 elementary school teachers from a school district in Northeast Florida; they were enrolled in a…

Commissioned for use during the design phase of the "Skills Essential to Learning" (SEL) video project, this concept paper makes a number of suggestions for facilitating effective scientific learning. These include: (1) establishing a positive climate for science learning in which the student can ask and pursue questions, change routes,…

Trying to change the predictive rule for the sinking and floating phenomena, students have a great difficulty in understanding density and they are insensitive to empirical counter-examples designed to challenge their own rule. The purpose of this study is to examine the process whereby students from sixth and seventh grades relinquish their…