To probe beyond declarative knowledge about real numbers in secondary school, the authors interviewed students in Grades 9, 10 and 12. The main question seems to be whether the length of a decimal expansion is "indefinite" or "infinite." It blurs the mental representation of rational numbers as well. (Contains 3 footnotes.) [For complete…

In this study, a learning unit on microorganisms for ninth-grade students was developed based on the Science-Technology-Environment-Society (STES) approach. The learning unit contained 15 learning tasks, which were performed in individual and cooperative learning settings, using a variety of teaching/learning methods with an emphasis on the…

Effectively teaching low-achieving and learning disabled students is challenging. Concept-based instruction is recognized as a particularly effective technique for helping students in these populations attain high levels of achievement (Tindal, Nolet, & Blake, 1992). The maze (a reading selection where certain words have been deleted and…

In this paper, we suggest that case-based resources, which are used for assisting cognition during problem solving, can be structured around the work of narratives in social cultural psychology. Theories and other research methods have proposed structures within narratives and stories which may be useful to the design of case-based resources.…

The research was conducted in Sydney and Hong Kong using students, from grades 5 to 9, whose first language or teaching medium was English, learning to read Chinese as second language. According to cognitive load theory, the processing of single Chinese characters accompanied by pictures should impose extraneous cognitive load and thus hinders…

Introduction: The following study examines gender differences existing in various cognitive-motivational variables (causal attributions, academic goals, academic self-concept and use of significant learning strategies) and in performance attained in school subjects of Language Arts and Mathematics. Method: For this purpose, a sample of 521…