The aim of this study is to define epigenetic literacy and describe how it can be included in school biology. Epigenetics is a new field of research in biology with abundant societal consequences and conceptual implications on how genetics is understood. Epigenetics explains how genes are regulated, thereby clarifying cell differentiation, and…

This instrumental case study examines how secondary biology teachers in a professional learning community (PLC) negotiated the meaning of the "Next Generation Science Standards" ("NGSS") in a year-long process of redesigning their curriculum. The PLC consisted of six biology teachers, five females and one male, who co-planned…

One of the goals of college-level introductory biology is to establish a foundation of knowledge and skills that can be built upon throughout a biology curriculum. In a reformed introductory biology course, we used iterative model construction as a pedagogical tool to promote students' understanding about conceptual connections, particularly those…

For over a century, genetic arguments for the existence of racial inequality have been used to oppose policies that promote social equality. And, over that same time period, American biology textbooks have repeatedly discussed genetic differences between races. This experiment tests whether racial terminology in the biology curriculum causes…

Many students feel the curriculum is detached from their lives and interests. Indeed, about half the questions asked by high school biology students are not addressed by the curriculum. This study presents a strategy to incorporate students' curiosity questions into the curriculum as a way to reduce the disparity between students' interests and…

An assessment-oriented design-based research model was applied to existing inquiry-oriented multimedia programs in astronomy, biology, and ecology. Building on emerging situative theories of assessment, the model extends prevailing views of formative assessment "for" learning by embedding "discursive" formative assessment more directly into the…

The purpose of this study was to explore college students' recognition of temporal magnitudes associated with durations of scientific changes through construct validation of a 30-item instrument. We administered the instrument to 514 students from 10 higher education institutions in the United States. Among them, 419 students took the instrument…

Because textbooks have the potential to be powerful catalysts for improving science teaching and learning, having reliable methods for analyzing important textbook features, such as their coherence, is essential. This study reports on the development of a method in which trained reviewers, following a set of guidelines defining the ideas to be…

This study explored the nature of the integration of the five components of pedagogical content knowledge (PCK): (a) Orientations toward Teaching Science, (b) Knowledge of Student Understanding, (c) Knowledge of Instructional Strategies and Representations, (d) Knowledge of Science Curriculum, and (e) Knowledge of Assessment of Science Learning.…

Despite the heavy reliance on textbooks in college courses, research indicates that college students enrolled in first-year science courses are not proficient at comprehending informational text. The present study investigated a reading comprehension questioning strategy with origins in clinical research based in elaboration interrogation theory,…

This study investigated the representations of a select group of scientists (n = 10) in a sample of Canadian high school and college textbooks. Drawing on semiotic and cultural-historical activity theoretical frameworks, we conducted two analyses. A coarse-grained, quantitative analysis of the prevalence and structure of these representations…

Summarizes the results of three studies designed to determine whether Israeli middle and secondary school students have a stronger preference for the study of animals or of plants. (JR)

Reports on the analysis of science curricula carried out across Canada within the framework of the Second International Science Study by: (1) describing the background to the study and the research methodology employed; (2) showing how data were organized; and (3) discussing meanings derived from the data analysis. (JN)

Examines how the theory of evolution was received by the scientific community at the time of its inception to provide insight into some of the difficulties that students have in learning some important biological concepts. Contains 82 references. (DDR)

Reports on effects of Individualized Goal Setting (IGS) Audio Tutorial (AT) instruction compared to classic AT instruction and effects of pretesting compared to no pretesting on students' locus of control. Indicates no significant effect on students' locus of control between IGS-AT v AT or between pretesting v no pretesting. (DS)