Attrition from the sciences remains a national problem. The authors present results from a survey of over 2,100 undergraduates that, contrary to previous research, suggests that teaching assistants (TAs) influence student retention in the sciences in multiple ways. Multiple linear regression (MLR) and student comments suggest that TAs influence…

The authors incorporated chemistry into information technology (IT) programming assignments and IT problem solving into chemistry. At-risk students, performing well below control groups of their peers in both courses, achieved end-of-term chemistry exam results and IT final project results that were statistically indistinguishable (p varies) from…

Though difficult to implement in large courses, undergraduate science writing and peer reviews are valuable learning experiences for students and valid mechanisms for student evaluation. This study describes improved writing and reviewing skills of students in introductory biology lecture classes that incorporate a web-based instructional tool,…

The case presented in this article is an exploration of the process of natural selection using white clover ("Trifolium repens") as an example. In general, two forms of white clover can be found around the world in various habitats. One type has plain green leaves and the other type produces cyanide as a defense against herbivores and signals the…

A retrospective analysis examines the relationships between formative assessments and exam grades in two undergraduate geoscience courses. Pair and group-work grades correlate weakly with individual exam grades. Exam performance correlates to individual, weekly online assessments. Student attendance and use of assessment feedback are also…

Several years ago, after a career of teaching biochemistry and introductory biology, the author decided to offer a course for biology majors on biological explanations of social phenomena (Biosocial Problems in Contemporary America). His goal in examining these topics was to help students develop critical-thinking skills that would allow them to…

Undergraduate research (UR) is widely promoted by faculty, administrators, institutions of higher learning, government laboratories, private industry, professional associations, and funding agencies as an effective method of training college students pursuing careers in science, technology, engineering, and mathematics (STEM) disciplines at…

Students in an introductory biology course who were given open-book exams during the semester earned significantly higher grades on these exams, but significantly lower grades on the closed-book final exam, than students who took in-class, closed-book exams throughout the semester. Exam format was also associated with changes in academic behavior;…

Since the industrial revolution, technological innovation and the application of basic scientific research have transformed society. Increasingly, critical conversations and legislation regarding national and international public policy have sophisticated scientific underpinnings. It is crucial that we prepare scientists and engineers with an…

Over the past decade, increasing numbers of institutions have reported using undergraduate students as instructors in science and technology courses. Undergraduates are most commonly used as assistants to graduate students, staff, or faculty who are the primary instructors for the course or lab/recitation section. In some cases, however,…

College science is often poorly taught and it is rare that any consideration is given to the nine visions for reform of science teaching featured in the National Science Education Standards (NSES) (NRC 1996, p. 52). It is even more rare to see interdisciplinary science courses taught in colleges. At many universities, this is changing where there…

Can you imagine a class where students cover the content with each other rather than simply listening to the professor's lecture? Can you envision students developing their own laboratory investigations and quizzing each other weekly to check for understanding? Well, that's pretty much how the major science organizations across the nation are…

Constructivism has become a widely understood and broadly accepted learning theory. Constructivism contends that each of us makes sense of our world by connecting new experiences to our existing understandings. Learners, as they encounter new situations, attempt to meld incoming information with their existing understandings. Constructivist…

Three local colleges in the Lehigh Valley collaborate on a service-learning project called Brain Awareness Day to enhance neuroscience literacy among the public regarding the functions of the brain and benefits of brain research. (Contains 1 table and 1 figure.)

This educational project involves prospective science teachers in implementing a natural science course for nonscience majors. The model creates a space for nonscience majors to experience learner-centered teaching practices while giving prospective teachers an opportunity to apply their science and science education course knowledge and learning.…