Scientific modeling is a core practice of scientific inquiry. Students' engagement in modeling can be enhanced by attending to epistemic criteria, which in science are standards used to evaluate the validity and accuracy of scientific models. While prior research has focused on students' development and use of epistemic criteria in scientific…

Misinformation has been extensively studied as both maliciously intended propaganda and accidentally experienced incorrect assumptions. We contend that "conceptual contamination" is the process by which the learning of incorrect information interferes, pollutes, or otherwise disrupts the learning of correct information. This is similar…

Science educators are placing increasing emphasis on the development of students' interdisciplinary competence. This study examined the degree to which disciplinary, cognitive and affective factors could explain students' (N = 385) individual differences in interdisciplinary competence. Multiple linear regression indicated that students'…

This quantitative, exploratory study examined whether a Project-Based Guided Inquiry (PBGI) chemistry laboratory course supported more incremental ability beliefs among students, examined achievement outcomes for students grouped based on changes in student-reported chemistry ability beliefs from pre- to post-course, and provided explanations for…

The process of thinking in and about models as a scientific practice should be integrated into science teaching and learning. Empirical studies show that students see models primarily in their role as media to facilitate content learning while rarely appreciating models as instruments of scientists which allow the deduction and the testing of…

A large body of research has examined students' conceptions of evolution and their relationships to acceptance of evolution. Proficiency in statistical and probabilistic reasoning has long been considered to be an essential feature of evolutionary reasoning, yet almost no empirical work has explored these putative connections. The RaPro…

The use of external representations has a potential to facilitate inquiry learning, especially in hypothesis generation and scientific reasoning, which are typical difficulties encountered by students. This study proposes and investigates the effects of a three-dimensional thinking graph (3DTG) that allows learners to combine in a single image,…

Informal learning settings such as museums have been identified as opportunities to enhance students' knowledge and motivation in science and to optimize the connection between science and everyday life. The present study assessed the role of a self-paced science education program (situated in a medical science museum) in enhancing students'…

This article reports the outcomes of a project in which teachers' sought to develop their ability to use instructional practices associated with argumentation in the teaching of science--in particular, the use of more dialogic approach based on small group work and the consideration of ideas, evidence, and argument. The project worked with four…

The development of rich, reliable, and robust measures of the composition, structure, and stability of student thinking about core scientific ideas (such as natural selection) remains a complex challenge facing science educators. In their recent article (Nehm & Schonfeld 2008), the authors explored the strengths, weaknesses, and insights provided…

To enhance the learning outcomes achieved by students, learners undertook a computer-simulated activity based on an acid-base titration prior to a university-level chemistry laboratory activity. Students were categorized with respect to their attitudes toward learning. During the laboratory exercise, questions that students asked their assistant…

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…

Reports a study designed to investigate the relationship between nuclear knowledge and nuclear attitudes and to the understanding of Science-Technology-Society attitudes involving technological attitude objects. Principal finding was that nuclear knowledge and nuclear attitude each can be changed independently of the other. Although knowledge and…

Assessed knowledge and attitude changes resulting from home viewing of a Cousteau Society documentary on marine mammals and compares these changes with those resulting from a science teacher's presentation on the documentary's script. Results show increased and retainable knowledge and temporary change in attitudes among ninth-grade students.…

"Hands-on" activities play an important, but controversial, role in early science education. In this study we attempt to clarify some of the issues surrounding the controversy by calling attention to distinctions between: (a) type of instruction (direct or discovery); (b) type of knowledge to be acquired (domain-general or domain-specific); and…