Describes an assessment of science student teachers' knowledge of biological concepts performed before and after their one-year Post Graduate Certificate of Education (PGCE) course. Finds little improvement in subject knowledge following training or in subsequent teaching of the concepts during the PGCE year. Suggests ways to improve science…

Reviews approaches used in teaching seasons to elementary and middle school students over the past 200 years. Finds that the same diagrams have been used from the 1800s to teach about the seasons despite changes in the background knowledge of students and teachers, and changes in theories of teaching and learning. (Contains 24 references.)…

Presents the results of a study of elementary science teaching methods. Finds that teachers participating in the study always elicit children's ideas prior to science instruction, and thus consider student ideas to be important. Also finds that students perceived that their ideas were important whether or not the teachers addressed those ideas in…

Examines the effects of adding a prediction/discussion phase at the beginning of a three-phase learning cycle involving exploration, term introduction, and concept application. Finds that the instructional innovation produced significant gains relative to the use of process skills, logical thinking skills, science concepts, and scientific…

The reform documents of the 1990s stressed that science is not practiced by a rigid scientific method, but science texts continue to describe the process as if it were rigid and linear. The purpose of this investigation was twofold: (a) to explore middle school in-service teachers' perceptions of scientific methodology and (b) to explore ways in…

Educational technology supports meaningful learning and enables the presentation of spatial and dynamic images, which portray relationships among complex concepts. The Technology-Enabled Active Learning (TEAL) Project at the Massachusetts Institute of Technology (MIT) involves media-rich software for simulation and visualization in freshman…

This study examines the effectiveness of a new constructivist curriculum model (Powerful Ideas in Physical Science) in improving prospective teachers' understanding of science concepts, in fostering a learning environment supporting conceptual understanding, and in promoting positive attitudes toward learning and teaching science and chemistry in…

This research examined 9- to 15-year-old children's understandings about basic genetics concepts and how they integrated those understandings with their broader theories of biology. A cross-sectional case study method was used to explore the students' (n = 90) understandings of basic inheritance and molecular genetics concepts such as gene and…

Physics as a subject for school students requires an understanding and ability to move between different modes of representation for the concepts under review. However, the inability of students to have a multimodal understanding of the concepts is seen as restricting their understandings of the concepts. The aim of this study was to explore the…

The objectives of this study are: (a) elaboration of a history and philosophy of science (HPS) framework based on a reconstruction of the development of the periodic table; (b) formulation of seven criteria based on the framework; and (c) evaluation of 57 freshman college-level general chemistry textbooks with respect to the presentation of the…

In this article, the authors present a classic playground game called "Sharks and Fishes" to introduce second- to fourth-grade students to the concept of "predation," or the relationships between a predator and its prey. By incorporating the game in a learning cycle on predation, students not only learn about predation in a memorable way, but they…

This article discusses how soap bubbles can be used to teach scientific principles such as phases of matter and the reflection of light. The study of soap bubbles addresses the National Science Education Standards for grades 5-8 related to the properties and changes of properties in matter. The exercises suggested here can be flexible in terms of…

The inquiry science process provides a perfect opportunity for students to practice relational meaning in language. As students design their experiments, negotiate their ideas with peers, and share their data and conclusions, they sharpen both their reading and written communication skills. This process needs to be mediated by having the teacher…

Writing is an integral part of science. The growth of scientific knowledge depends on scientists' ability to record their thoughts and discoveries for future scientists to build on. Everyday literacy is the basis of scientific literacy. In addition, writing about science helps students learn science. In order to transfer science concepts from what…

Teachers can easily identify what subjects their students have trouble with, whether it is transcription and translation, glycolysis and fermentation, balancing chemical equations, or vector analysis of forces acting on an object. Yet, no matter how teachers try to make these complex issues more accessible to students, or how new editions of…