Students use manipulative models and small-scale simulations that promote learning of complex biological concepts. The authors have developed inexpensive wet-lab simulations and manipulative models for "Diagnosing Diabetes," "A Kidney Problem?" and "A Medical Mystery." (Contains 5 figures and 3 online resources.)

Learning centers can help teachers assess students' content knowledge without penalizing them for language barriers. With the increasing number of English language learners (ELLs) in classrooms, the emphasis on mastery of content and inclusion of all students in class discussions and activities will provide all students a chance for scientific…

Current reform documents place a strong emphasis on students' understandings of the nature of science (NOS). Interestingly, the importance of this educational outcome is not new and has been agreed upon as important by most scientists and science educators for the past 100 years. Despite numerous attempts, including the major curricular reform…

Describes a program which stresses student self-instruction. The innovative abilities of students using the A-T approach are nurtured and expanded. This paper presents what can be done in the science classroom as the result of genuine student participation in the learning and teaching processes. (LS)

Describes a curriculum development project in which the Science Education Center of the University of Oklahoma and the science department of Norman (Oklahoma) High School prepared and classroom tested complete courses in biology, chemistry, and physics using the learning cycle principles of exploration, conceptual invention, and discovery. (JN)

Introduces the American Renaissance in Science Education (ARISE) project. Discusses factors influencing the project's success. (YDS)

Describes the Ecology Explorers, the community education component of Arizona State University's Central Arizona Phoenix Long-Term Ecological Research project, which offers teacher internship programs that link university researchers, K-12 teachers, and students in studying urban ecology. Explains that student neighborhoods are dynamic ecosystems…

Discusses advantages and disadvantages of standard high school biology and chemistry course sequences. Relates these sequences to Piagetian developmental levels as well as to David Ausubel's cognitive theory. Suggests that the sequences be reexamined in light of issues considered. (JM)

Discusses the revamping of high school biology and chemistry curricula with the guiding principles of hands-on science and performance-based assessment. Includes goal identification, program design, and a discussion on measures of success. (DDR)

Introduces a community service-learning project and shows how the community photography project captures the essence of biology and fosters curriculum collaboration between high school and elementary students. (KHR)

Describes a school district's refocusing of lesson plans in the natural sciences to teach students about the structure and function of the earth--a focus all but abandoned in many school programs. Details of the curriculum; the resources used; leadership initiatives; and obstacles to implementation are discussed. (PR)

Discusses how the science faculty at one rural Massachusetts school responded to the state mandate requiring basic competency testing for all students. The approach taken (includes unit on Connecticut River) does not call for major changes in science course format, only in broadening definition of the responsibilities of science teaching.…

Presented are the reasons why the earth sciences must play a major role in curriculum renovation. Philosophical, methodological, and conceptual contributions to K-12 curriculum content are discussed. (KR)