Although visual aids are widely considered a valuable source of scaffolding, the nature and active utilization of these aids in current science classrooms are not well understood. This qualitative study explores interaction in the teaching of concepts related to evolution, with a specific focus on a teacher's use of different visual support…

This ethnographic research examines how children enact developing understandings in science through multiple interactions. Grounded in sociocultural theoretical frameworks, we consider learning to be a social, cultural practice, with understandings as co-constructed between participants through talk and in interactions. With these underpinning…

I profile here a prospective method for assessing nature of science (NOS) knowledge, as an alternative to VNOS and similar approaches. Questions about cases in contemporary news and from history probe scientific literacy in context. Scoring targets how "well informed" the analysis is, based on identifying relevant NOS information and interpreting…

Studies of learning in school settings indicate that many students frame activities in science classes as the production of answers for the teacher or test, rather than as making new sense of the natural world. A case study of an episode from a class taught by the first author demonstrates what productive and unproductive student framing can look…

This exploratory study examines how a series of laboratory activities designed using a new instructional model, called Argument-Driven Inquiry (ADI), influences the ways students participate in scientific argumentation and the quality of the scientific arguments they craft as part of this process. The two outcomes of interest were assessed with a…

This qualitative multiple case study explored the conceptual frameworks of two congenitally blind male adolescents on the nature of matter. We examined participants' responses on four tactile investigations focused on concepts and processes associated with matter changes. The matter changes investigated were dissolution, chemical change,…

We describe a study of programs to deepen families' scientific inquiry practices in a science museum setting. The programs incorporated research-based learning principles from formal and informal educational environments. In a randomized experimental design, two versions of the programs, called "inquiry games," were compared to two control…

This research reports on a study of curriculum materials development and use compared with the use of existing curriculum materials in an elementary classroom. The research explored the effect of explicit attention to epistemic practices in curriculum materials and the enactment of those materials. Epistemic practices include asking questions,…

The laboratory has been given a central and distinctive role in science education, and science educators have suggested that rich benefits in learning accrue from using laboratory activities. Twenty years have been elapsed since we published a frequently cited, critical review of the research on the school science laboratory (Hofstein & Lunetta,…

Guided scientific inquiry investigations are designed to have students reach particular answers through the thinking processes and activities of scientists. This presents a difficult challenge for teachers who must selectively hold back answers from students to maintain an atmosphere that encourages student-directed inquiry. The present study…

Documents an instructional methodology to teach a fundamental reasoning skill during scientific inquiry: the evaluation of empirical evidence against multiple hypotheses. Uses an instructional framework with iterative cycles that lends itself to authentic scientific inquiry by providing a nontraditional approach to three aspects of learning: (1)…

Advances the thesis that philosophical questioning should precede or accompany children's participation in science activities in the elementary grades. (CP)

Seventeen five-member groups of secondary students were studied as they attempted to solve a science problem through group discussion. Results of the study show both advantages and disadvantages of this type of instruction. (MLH)

Science teachers must adapt curriculum materials, so preservice teachers must develop beginning proficiency with this authentic task of teaching. What criteria do they use when they critique these materials in preparation for adapting them, when they develop the criteria themselves and when they are given a set of criteria from which to choose?…

The purpose of this study was to explore how science teachers' epistemological beliefs and teaching goals are related to their use of lab activities. Research questions include: (1) What are the teachers' epistemological beliefs pertaining to lab activities? (2) Why do the science teachers use lab activities? (3) How are the teachers'…