A comparison of student performance in an introductory biology class that used a lecture-based approach (N = 15 classes; 462 students) with those that had a no-lecture approach (N = 9 classes; 238 students). All classes were taught by the principal researcher. In the no- lecture environment, shifts in student perceptions of science were…

Data modeling practices are often invisible to students in introductory biology courses. However, developing a well-rounded understanding of these practices is critical for scientific literacy. Furthermore, introductory undergraduate science laboratory courses are often taught by graduate students or novice instructors with little autonomy,…

Part of learning science is practicing reasoning, but some of the most common approaches to science instruction offer students little opportunity to do that, especially in the whole-class setting of large-enrollment courses. We present and closely examine a single episode of instructor listening--an instructor deliberately adopting a stance, and…

An introductory physics course may be run like a video game, where students have an almost unlimited number of attempts to demonstrate their competencies through a sequence of zero-penalty assessments until the end of a semester. Each checkpoint is conducted as a 10-minute, one-on-one oral interview with the instructor, and students are not…

Quantitative reasoning (QR) competencies are increasingly called for in the data rich and complex environment of STEM disciplines, including biology. Curricular reform efforts in QR have been directed at disseminating course design and pedagogy but less work has been directed at understanding what faculty at large view as crucial for student…

This paper describes an introductory biology course for undergraduates that heavily incorporates quantitative problem solving in activities and homework assignments. The course is broken up into a series of units, each organized around a motivating biological question or theme. Homework assignments address the theme or question, and typically…

Acceptance of human evolution seems to be the majority position for the U.S. population; however, acceptance of evolution among conservative Christian groups is low, sometimes below 50%. There are many different reasons for this low acceptance, leading to a significant disconnect between scientific specialists and the general population. This…

The ability to read and compose original scientific literature is critical to educating informed citizens, yet may be severely lacking in undergraduate curricula. We developed a linked course offering in fall 2017 consisting of a 16-student group taking an introductory biology course paired with a first-year composition course. The composition…

As introductory college science courses transition from large, passive lectures to more student-centered active learning environments, additional instructional support may be needed. Peer Learning Assistants (PLAs) can aid course transformations by helping facilitate active learning and peer engagement among students in the classroom. Pedagogical…

In this article, the authors describe how classroom observations were used to characterize differences in instructional practices among undergraduate science courses. Student and faculty behaviors and dialogues were quantified using the Teaching Dimensions Observation Protocol (TDOP) in introductory science courses across multiple disciplines…

Quantitative reasoning, although included in most science courses, can be challenging to teach. In this article, we explore whether cooperative learning may help instructors teach quantitative reasoning and enhance students' understanding and learning experience. Our lesson was taught in a large introductory geoscience course. The lesson required…

This article reports the findings of the Peer-Led Team Learning (PLTL) model intervention study in an introductory biology course at a Puerto Rican private university. PLTL introduces to the traditional class format an additional workshop session in which students interact in small groups to solve challenging exercises under the guidance of a peer…

Understanding of evolution is foundational to be a scientifically literate citizen because it allows analysis of socioscientific issues, such as biodiversity conservation, biotechnology applications, and human-induced climate change. Unfortunately, students who weakly understand evolution fail to understand its importance in everyday life and…

A growing number of Introductory Physics for Life Sciences courses have been developed to prepare biology, premedicine, and prehealth majors for cross-disciplinary connections between physical principles and biological systems. Many students find it challenging to apply idealized algebra-based general physics to more complex biological systems. A…

Visual representations of physical and natural phenomena are important components of the teaching and learning of biology. In current undergraduate biology classrooms, visual representations are most often provided to students on PowerPoint slides. This study focuses on the use of, and perceptions about, PowerPoint in undergraduate introductory…