This paper describes the current approach used in Israel for teaching photosynthesis to junior high school students. Authors identify two types of problems, psychological and instructional, that children experience in understanding photosynthesis. Presents a foundation and sequence for a new approach to teaching photosynthesis. (18 references) (PR)

Analyzes students' understanding of biological phenomena via the ontological categories of processes and matter. Analysis is based on tenth-grade students' explanations of biological phenomena such as photosynthesis, energy resources, temperature regulation, and the interrelationships between living and nonliving things. (Author/WRM)

Identifies the conceptions of energy of preservice high school biology teachers. Findings indicate that this group of preservice teachers holds alternate conceptual frameworks when describing physical situations. Contains 35 references. (DDR)

Presents a study to determine whether biology students in preservice training to become high school teachers hold correct scientific views that will eventually allow them to plan and implement instructional strategies which in turn will lead their future students to achieve a correct scientific concept of force. (Author/DKM)

Describes a diagnostic evaluation to measure the idea of the living cell as the basic unit of life. Describes the classification of student knowledge as common knowledge, wide-spread lack of knowledge, inadequate alternatives, and contradictions. (YP)

The use and analysis of student generated propositions linking two scientific concepts (photosynthesis and respiration) were examined before and after the study of photosynthesis. A proposition-generating task (PGT) was used as a diagnostic tool to indicate student misconceptions and partial understandings. Focus was on determining: how the nature…