Described are how students (n=2,000) reduce the complexity of multivariable problems. Tendencies toward "functional reduction" in common reasoning are shown to range from a simple reduction in the number of variables considered, to a more elaborate procedure where all variables are taken into account, but in a simplified way involving…

Describes an approach to the teaching of electricity that uses box and AVOW diagrams, novel representations of the properties of the electric circuit that portray current, voltage, resistance, and power. The diagrams were developed as aids in learning, understanding, and problem solving and to promote conceptual change by challenging a number of…

Experiences with an instructional strategy which enabled students to build for themselves the appropriate scientific concept for energy are described. This was done by pupil/teacher dialogue in small groups, in which students were expected to create for themselves a "generalization mechanism" based on their own frameworks. (KR)

In search of a better understanding of the learning difficulties in basic electricity, learning results, interest, achievement motivation, IQ, and cognitive development were investigated in students from both urban and rural schools. An analysis reveals that, for urban classes, learning is related primarily to interest and motivation and, for…

Describes the affective factors involved in the academic progress and achievement of newly-arrived bilingual twins in a secondary school in London. Finds that different personality traits and self-perceptions resulted in the development of their divergent personal learning styles, and that task interest, appropriate learning strategies, and…