Passive, lecture-based forms of instruction are often ineffective in helping students develop deep conceptual understanding of scientific concepts. Student-centered forms of instruction based in a constructivist framework, where students are guided toward actively constructing their understanding, have been met with greater success. However,…

Teaching in the 21st century requires a modern teaching practice coherent with the evolutions of the Information Age. Interestingly, teaching practices have stretched beyond an art form and into the realm of science. Following these scientific trails, one can argue that one of the greatest challenges educators currently face is to maintain student…

We implemented peer instruction in an introductory level conceptual physics course for nonscience majors on the basis of the success others reported with this method. We expected to see that learning from peer conversation, as evidenced by answering conceptual questions correctly following discussion, would correlate with course grade, but we did…

Most timeline analogies of geologic and evolutionary time are fundamentally flawed. They trade off the problem of grasping very long times for the problem of grasping very short distances. The result is an understanding of relative time with little comprehension of absolute time. Earlier work has shown that the distances most easily understood by…

Research has shown that asking conceptually based questions along with a personal response system (clickers) is an effective way of implementing the peer instruction pedagogy. Lecture tutorials are a paper-based method that also incorporates peer instruction. Past research has shown that both methods yield significant learning gains for students…

Today's undergraduates are highly engaged in a variety of social media outlets. Given their comfort with technology, we wondered if we could use this phenomenon to teach science-related material. We asked students to use freeware to make a short video with text, images, and music as a way to explain scientific concepts that are traditionally…

The instructor of an integrated science course for nonscience majors embedded content-related video segments from YouTube and other similar internet sources into lecture. Through this study, the instructor wanted to know students' perceptions of how video use engaged them and increased their interest and understanding of science. Written survey…

Eight Earth science graduate teaching assistants (GTAs) participated in a semester-long seminar designed to facilitate change in their practice. The seminar used lesson-study methodology to facilitate discussion of GTAs' beliefs about teaching while planning a research lesson for implementation in their laboratory. This article reports the results…

This paper examines students' mixed perceptions of the use of active learning techniques in undergraduate science lectures. Written comments from over 250 students offered an in-depth view of why students perceive these techniques as helping or hindering their learning and experience. Fourth- and fifth-year students were more likely to view…

Testing strategies centered around open-ended assessments are generally thought to result in deeper learning compared with close-ended questioning. However, the time requirements involved in grading open-ended assessments on exams often limit the feasibility of using such assessments. This article presents an index card questioning strategy…

We studied student seating habits in both a traditional lecture hall with the instructor in the front and in a SCALE-UP (Student-Centered Activities for Large Enrollment Undergraduate Programs) studio-style classroom with the instructor in the middle. Like several previous authors, we find that students with higher course grades tend to sit in the…

Many college science educators have moved away from the traditional lecture format and toward learner-centered classroom environments. Yet many of us struggle to cover large content loads, reverting at times to rote memorization. This paper suggests rote memorization simply does not work and students must be actively engaged to learn. (Contains 1…

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…

As an alternative to reading quizzes, a team of biochemistry instructors implemented student reading questions (Henderson and Rosenthal 2006) as a new instructional strategy within their large-enrollment biochemistry courses. Unexpected positive outcomes of this instructional method were realized, as well as limitations of the method within this…

Despite years of formal education, approximately one-third of all undergraduate students still cannot explain the causes of the seasons. Student manipulation of a handheld model is one approach to teaching this concept; however, the large number of students in many introductory classes can dissuade instructors from utilizing this teaching…