This mixed-methods research investigated teachers' perceptions of intrinsic factors (personal attributes of the teacher) and extrinsic factors (environmental) influencing the implementation of inquiry-based science learning at township (underdeveloped urban area) high schools in South Africa. Quantitative data were collected by means of an adapted…

This article reports on quantitative findings from a design-based implementation research (DBIR) project "Carbon TIME" that focused on teaching carbon cycling at multiple scales, from atomic-molecular to global. We report results from a large dataset from diverse schools, including 59,654 student assessments of three-dimensional learning…

This research examined lifelong science learning reported by amateur astronomers and birders. One hundred seven adults who reported engaging in an informal (out-of-school) science interest were interviewed as part of an ongoing series of studies of lifelong science learners. The goal of the study was to gain insight into how and why amateur…

Spatial discontinuity between causes and effects is a feature of many scientific concepts, particularly those in the environmental and ecological sciences. Causes can be spatially separated from their effects by great distances. Action at a distance, the idea that causes and effects can be separated in physical space, is a well-studied concept in…

This paper focuses on the trade-offs that lie at the intersection of methodological requirements for causal effect studies and policies that affect how and to what extent schools engage in such studies. More specifically, current federal funding priorities encourage large-scale randomized studies of interventions in authentic settings. At the same…

Reports a study using the causal modeling method to verify underlying causes of student interest in enrolling in physics as predicted by the theory of planned behavior. Families were identified as major referents in the social support system for physics enrollment. Course and extracurricular conflicts and fear of failure were primary beliefs…

Understanding the interaction between internally constructed and externally imposed aspects of the teaching context may be the missing link between calls for school reform and teachers' interpretation and implementation of that reform. Although the context of the local school culture has a profound impact on teachers, there are other external…

Students often hold strong attitudes regarding topics they encounter during their studies, and many instructors feel that these attitudes can have strong effects on students' performance. We characterized students' attitudes toward evolution and investigated the influence of students' attitudes (pre-course and post-course) regarding evolution on…

Assesses the influence of three history of science (HOS) courses on college students' and preservice teachers' conceptions of nature of science (NOS). Examines whether participants who entered the investigated courses with a conceptual framework consistent with contemporary NOS views achieved more elaborate NOS understandings. Explores the aspects…

Identified 25 variables (12 of which were scale-specific) related to changes in students' conceptions of science. In addition, a comparison between teacher and student conceptions of science did not support the prevalent assumption that a teacher's conception of science is significantly related to changes in students' conception of science.…

Examined how science content knowledge, moral reasoning ability, attitudes, and past experiences mediate the formation of moral judgments on environmental dilemmas. Environmental science majors (N=86) and nonmajors (N=105) participated in the two-phase study which found that moral reasoning is influenced by the context (setting) of a moral…

Thurstone's Scale No. 30, Form A was used to survey attitudes of introductory college biology students (N=120) toward evolution. Results indicate the majority of these students believe in the theory of evolution. In addition, two demographic variables, sex and church influence, produced a significant correlation with the attitude scores.…

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)

The purpose of this qualitative case study was to examine the nature of a first-year elementary teacher's specialized practices and knowledge for giving priority to evidence in science teaching and to explore the possible sources from which this knowledge was generated. Data included three audiotaped interviews, six videotaped classroom…

Examined grades 6-12 students' (N=2000) preferences and choices regarding science subjects and relationships of these preferences to school type, age, and sex. Findings indicate that zoology and human anatomy/physiology were most preferred while ecology was least preferred. These and other findings are related to a previous study conducted in…