Developing understanding of models and proficiency with modeling practice is challenging for both teachers and students. This 2-year study first investigated existing instructional strategies employed by teachers while teaching Earth and Space Science with dynamic physical models. Summer professional development introduced a conceptual framework,…

This paper examines students' achievement and interest and the extent to which they are predicted by teacher knowledge and motivation. Student achievement and interest are both considered desirable outcomes of school instruction. Teacher pedagogical content knowledge has been identified a major predictor of student achievement in previous…

In order to compete in a global economy, students are going to need resources and curricula focusing on critical thinking and reasoning in science. Despite awareness for the need for complex reasoning, American students perform poorly relative to peers on international standardized tests measuring complex thinking in science. Research focusing on…

Discusses schematic modeling and describes an experiment in which Lebanese high school and college students participated in problem-solving tutorials that followed a schematic modeling approach. Results indicate that both groups improved significantly in problem-solving performance and the course achievement of students in the college group was…

This exploratory study determined whether a mathematical model of mastery learning provided a good fit for achievement data obtained from student progress in an introductory, college-level astronomy course for nonmajors. Results provide positive but not compelling evidence that the model of mastery learning is correct. (JN)

Explores a possible model for the prediction of students' science achievement in China and the United States based on the ninth-grade database from Phase II of the Second IEA (International Association for the Evaluation of Science Achievement) Science Study (SISS). Compares the structure of latent factors and model complexity between the two…

Monitoring student performance on microcomputer drill and practice programs over time provides evidence that students learn from the programs at different rates and that programs differ in the rates at which they impart learning to students. Implications of these and other findings for science teaching are addressed. (JN)

Discusses a case study on discovery learning with a computer simulation environment in the physics domain of collisions. Finds that providing assignments with the simulation improves students' performance on one aspect of an intuitive-knowledge test. Contains 43 references. (Author/WRM)

Based on studies carried out on qualitative data an instrument was constructed for investigating how larger numbers of students handle graphics. This test, consisting of 18 pages, each with its own graphic display(s) and a set of tasks, was distributed to 363 students, 15-16 years of age, from five different schools. The format of the questions…

Determined the effects of reasoning, use of models during testing, and sex type on posttest achievement in chemical bonding under controlled instruction. Indicates that chemistry students' (N=84) reasoning capabilities influenced performance; other variables were not significant. Other conclusions are noted and discussed. (DH)

To explain college students' (N=110) achievement in mechanics, a causal model consisting of three constructs (Newtonian physics, mathematics ability, and science experience) was proposed. Implications for physics instruction are discussed based on results indicating plausibility of the model. (Author/SK)

Discusses a mathematical model for mastery learning. The model includes measures of a motivational factor and the specific ability of a learner with respect to content being learned. The model also contains a variable reflecting prior learning. Assumptions/limitations are discussed, and research questions raised. (Author/JN)

Assesses the effects of a one-day inservice program for junior high school science teachers emphasizing an activity-oriented science curriculum and management strategies necessary for such a curriculum. Results indicate inservice positively affects teacher attitudes toward strategies and student achievement in science. (DS)