When conducting biological investigations, experts constantly integrate their conceptual and quantitative understanding of variation with the design and analysis of the investigation. This process is difficult for students, because curricula often treat these concepts as separate components. This study describes the effect of a curricular…

Undergraduate biology laboratories emphasize hands-on skills. Typically, descriptions of manual techniques are delivered via written instruction. Custom-produced prelab instructional videos, which augment prelab instruction, have come into wider use in recent years. However, institutional and economic barriers can interfere with video production…

Writing a lab report can be an opportunity for students to engage in scientific thinking. Yet students' lab reports often do not exhibit evidence of such engagement. Students' writing can appear focused on "filling in" required components and reporting on predetermined conclusions. We conducted a design experiment in an introductory…

Participation in the science workforce is low, and this can be partially attributed to low retention rates of undergraduate students who initially declare a science major. Low retention rates are further exacerbated for under-represented minority (URM) and first-generation (FG) college students pursuing science, and the existence of achievement…

Agricultural education can take scientific topics to higher levels, emphasize scientific concepts, involve hands-on learning, and develop interrelationships with the other sciences, thus making the living and non-living world around them relevant for students, potentially supporting a STEM curriculum. As such, in 1996, Utah deemed agricultural…

Modern biology has become increasingly molecular in nature, requiring students to understand basic chemical concepts. Studies show, however, that many students fail to grasp ideas about atom rearrangement and conservation during chemical reactions or the application of these ideas to biological systems. To help provide students with a better…

Introductory biology courses are supposed to serve as gateways for many majors, but too often they serve instead as gatekeepers. Reliance on lectures, large classes, and multiple-choice tests results in high drop and failure rates. Critiques of undergraduate science education are clear about the problems with conventional introductory science…

More schools in the United States have begun teaching physics to ninth-graders, but there continues to be limited evidence that such a change benefits students. Many arguments in favor of Physics First and the inverted sequence of physics-chemistry-biology are based more on the intellectual logic of the sequence than on measured outcomes. Paul…

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…

Studies of high-school science course sequences have been limited primarily to a small number of site-specific investigations comparing traditional science sequences (e.g., Biology-Chemistry-Physics: BCP) to various Physics First-influenced sequences (Physics-Chemistry-Biology: PCB). The present study summarizes a five-year program evaluation…

Given the problems associated with the traditional lecture method, the constraints associated with large classes, and the effectiveness of active learning, continued development and testing of efficient student-centered learning approaches are needed. This study explores the effectiveness of team-based learning (TBL) in a large-enrollment…

A number of factors affect successful implementation of an integrated science curriculum, including various outputs and inputs related to teacher quality such as professional development experiences, adequate planning periods, and adequate content preparation of teachers with regard to content knowledge associated with the curriculum taught. This…