The choice of which language strategies to use in schools in Africa is the subject of much debate. In the Life Sciences, cultural issues associated with the use of biological terminology add to this debate. In our study, we examined the language choices made by Grade 7 Natural Sciences teachers in South Africa during their teaching of human…

The purpose of this design-based research case study was to apply a networked learning approach to a seventh grade science class at a public school in the southeastern United States. Students adapted Web applications to construct personal learning environments for in-depth scientific inquiry of poisonous and venomous life forms. API widgets were…

This study attempted to determine which combinations of student, teacher, curricular, and task factors characterize effective life science instruction, where effectiveness is defined as the acquisition of scientific literacy. The framework of scientific literacy used includes five teacher behavior components: (1) explaining science content; (2)…

The purpose of the teacher's guide is to acquaint junior high school students with occupations in the life sciences. By identifying life science and exploring the areas of biology (ecology and zoology) and medicine, students may become aware of the functions of the people involved in these areas and the value of their work. The material in the…

Assessed the level of cognitive demand inherent in the manner in which students were held accountable for activities and tasks in seventh grade life science classes. Notes that most tasks placed minimal cognitive demand on students, as they involved copying or simple step-by-step procedures. (SKC)

Recent events, such as the anthrax scares and the SARS outbreak, have forced teachers to focus on issues such as disease control and bioterrorism in their own backyards. Students are aware of the current biological issues in the news and are curious about infectious diseases and the issues relating to biological warfare. In order to address the…

REPORTED IS THE DETERMINATION OF THE RELATIVE EFFECTIVENESS OF THREE LEVELS OF ABSTRACTION (VERBAL, SKETCH, MECHANICAL MODEL) IN THE USE OF THE CONCEPTUAL SCHEME OF EQUILIBRIUM AS AN ADVANCED ORGANIZER APPLIED TO INSTRUCTION WITH REFERENCE TO ECOLOGICAL SYSTEMS. LESSONS WERE TELEVISED TO CONTROL THE INSTRUCTION OF PUPILS IN GRADES 7 AND 9. THE…

This 10-chapter report provides detailed information on a study which examined what combinations of teacher, student, and curricular variables were associated with more effective life science instruction at the intermediate level. The conception of effectiveness was guided by the normative framework of scientific literacy and by student growth on…

This study is an extension of an on-going longitudinal study, the Girls Engagement With/In Science (GEIS) Project. The GEIS Project was designed to understand how girls who are poor, minority or both, engage in science. The two teachers who form the focus for this study are these girls' 7th and 8th grade teachers. Data for this interpretive…