The relationships and possible effects of various personal home and school variables on the acquisition of functional biological, chemical, and physical scientific knowledge by tenth grade Israeli students (n=544) was investigated. Biology was the only subject in which functional knowledge was significantly related to nonformal science activities.…

Information on the content of the intended science curriculum, what science was actually taught by the teachers, and how that science was taught is presented. Student achievement and attitudes were assessed using tests and questionnaires. Data were obtained from teachers regarding whether the content had been taught to the students (n=657) who…

Combined free response questionnaire and interview procedure are used to probe students' ideas regarding how they believe they see both luminous and nonluminous objects and how they think they hear source of sound. From large sample of students studied (n=1901), prevalence of ideas in different age groups is compared, and progression can be seen.…