The amount of substance and its unit the mole is a basic concept in chemistry. However, previous research has shown that teaching and learning the concept are challenging tasks for both teachers and students. The purpose of this study was to pinpoint the problems which emerge in the teaching and learning process, and provide integrated suggestions…

Sixteen concept words related to "matter" were described as simple textbook definitions and 16 multiple-choice items were constructed for each concept definition. These materials were used to compare the ability of 1,635 Tasmanian and 826 Indian students to recognize the concept definitions and their attendant verbal labels. (JN)

Investigated the meaning that Hindi-speaking students (N=826) in India and English-speaking students (N=1,635) in Tasmania preferred when thinking about each of 16 key concept definitions associated with the theme "the nature of matter." Results show marked changes in the development of these preferences which raises issues for science…

This article explores the conceptual change of students in Grades 10 and 12 in three Australian senior high schools when the teachers included computer multimedia to a greater or lesser extent in their teaching of a genetics course. The study, underpinned by a multidimensional conceptual-change framework, used an interpretive approach and a…

Investigates effects of an independent variable (grade) on three dependent variables (membership, partial association, and generalization) describing preferential styles of thinking in 1635 pupils, measured by a 16 concept word test. (DS)