In this article, the authors argue for a design process in the development of educative curriculum materials that is theoretically and empirically driven. Using a design-based research approach, they describe their design process for incorporating educative features intended to promote teacher learning into existing, high-quality curriculum…

The notion of scientific literacy is contested terrain, particularly when the term is used in school curricula. Using a scientific literacy framework of Vision I (covers science products and processes) and Vision II (based on science-related situations as a starting point for discussion), the article analyses the Natural Science (grades 7-9)…

There is on-going international interest in the relationships between assessment instruments, students' understanding of science concepts and context-based curriculum approaches. This study extends earlier research showing that students can develop connections between contexts and concepts--called "fluid transitions"--when studying…

This work describes three case studies conducted to address two major problems in the area of chemistry education research, the lack of reported psychometrics regarding instrument scores, and the need for well-characterized assessments to evaluate college chemistry curricula. The first case study describes a psychometric evaluation of the Colorado…

The heart of learning chemistry is the ability to connect a compound's structure to its function; Lewis structures provide an essential link in this process. In many cases, their construction is taught using an algorithmic approach, containing a set of step-by-step rules. We believe that this approach is in direct conflict with the precepts of…

A new National Science Foundation supported curriculum, Interactions in Physical Science[TM], was evaluated on students' conceptual change in the twelve concept areas of the national physical science content standard (B) for grades 5-8. Eighth grade students (N = 66) were evaluated pre and post on a 31-item multiple-choice test of conceptual…

A comparative study was conducted to compare two approaches to engineering design curriculum between different schools (inter-school) and between two curricular approaches, "Project Lead the Way" (PLTW) and "Engineering Projects in Community Service" (EPIC High) (inter-curricular). The researchers collected curriculum…

This study involved examining an instructional unit with regard to its concept content and appropriateness for its target audience. The study attempted to determine (1) what concepts are treated explicitly or implicitly, (2) whether there is a hierarchical conceptual structure within the unit, (3) what level of sophistication is required to…

Provides both a rationale and framework for Earth systems education and a description of the early development of the Program for Leadership in Earth Systems Education (PLESE). Presents the seven basic understandings that form the conceptual basis for the PLESE program. (five references) (MCO)

Compared formal science scope/sequence with curriculum as it was taught in Little Rock (Arkansas) classrooms. Elementary teachers (N=126) were given a list of 273 concepts and asked if a topic was a significant part of their instruction and how much time was spent teaching it. Results are reported and discussed. (JN)

This guide is intended to assist in the evaluation of elementary science curriculum materials for use with high ability learners, in the light of calls for a "new science" which stresses depth of conceptual understanding. It presents a curriculum review process and two evaluation instruments. The process is intended to balance sound practices of…

Describes a study to evaluate the effect of the Energy Education Curriculum Program as perceived by elementary and secondary classroom teachers. Results indicate that energy education is taught in schools when materials and information are made available to the classroom teacher. (RT)

The transfer of matter and energy from one organism to another and between organisms and their physical setting is a fundamental concept in life science. Not surprisingly, this concept is common to the "Benchmarks for Science Literacy" (American Association for the Advancement of Science, [1993]), the "National Science Education Standards"…

Notes the remarkable success of the astronomy component of the National Curriculum in England and Wales. Presents findings of a survey of children's astronomical beliefs, which are consistent with constructivist theory, and proposes the value of children's astronomy learning. Argues that a 1995 revision in the National Curriculum, which would…

This concept paper outlines the rationale for a project on the development of science curriculum for K-8 high ability learners. The rationale was developed through a synthesis of major recommendations from national science reform reports and from a review of the literature on effective science curriculum for high ability learners. The paper begins…