A nanotechnology module was developed for ninth grade students in the context of teaching chemistry. Two basic concepts in nanotechnology were chosen: (1) size and scale and (2) surface-area-to-volume ratio (SA/V). A wide spectrum of instructional methods (e.g., game-based learning, learning with multimedia, learning with models, project based…

The use of handheld computers in educational contexts has increased considerably in recent years and their value as a teaching tool has been confirmed by many positive experiences, particular within collaborative learning systems (Mobile Computer Supported Collaborative Learning [MCSCL]). The cost of the devices has hindered widespread use in…

This study describes the analogical models and narratives used to introduce and teach Grade 9 chemical covalent compounds which are relatively abstract and difficult for students. We explained each model's development during the lessons and analyzed understanding students derived from these learning materials. In this context, achievement,…

After-school programs specifically designed to improve students' mathematics achievement in collaboration with classroom teachers' planning and in class daily instruction have been found to be successful in improving student learning (Hock, Pulvers, Deshler, & Schumaker, 2001). The purpose of this article is to describe the results of an…

A self-paced format is used to teach physical science on three levels: (1) regular program; (2) challenging readings and experiments for academically gifted; and (3) modified textbooks for students with reading/learning difficulties. (Author/JN)