This column shares reflections or thoughtful opinions on issues of broad interest to the community. This month's issue discusses the value of traditional lecturing.

This paper examines the effectiveness of adding an online component to the general chemistry laboratory in which students view prelaboratory instructional materials through online videos prior to completing general chemistry laboratory activities. Using a quasi-experimental design, we compared the performance of 1089 general chemistry students who…

A comprehensive guided-inquiry approach was used in a combined organic and biochemistry course for prenursing and predietetics students rather than lecture. To assess its effectiveness, exam grades and final course grades of students in three instructional techniques were compared. The three groups were the following: (i) lecture only, (ii)…

Student-centered education is in the air. It is present in many reform agendas for higher education across every discipline and is shortlisted as an important goal for teaching and learning in many reports and recommendations of professional agencies and scientific societies. There is wide consensus that moving from teacher-centered to…

A first-semester organic chemistry course was developed as a hybrid course. The students met face-to-face for one class each week (50 minutes) and the lectures were accessible online via Adobe Connect. Quizzes were scheduled for almost every lecture with access online through ANGEL. In addition, the students had three in-class tests and one final…

Laboratories have been a cornerstone in teaching and learning across multiple scientific disciplines for more than 100 years. At the collegiate level, science laboratories and their corresponding lectures are often offered as separate courses, and students may not be required to concurrently enroll in both. In this study, we provide evidence that…

Classroom questions represent a potentially powerful tool for interacting with students and stimulating critical thinking. However, the efficacy of the question-and-answer approach to teaching is influenced by many factors, such as the type and cognitive level of questions asked as well as students' response time. To examine these factors and…

We report the student response to a two-year transformation of a one-semester organic chemistry course for nonchemistry majors. The transformed course adopted a peer led team learning approach and incorporated case studies. Student attitudes toward the course transformation were assessed throughout the semester, and adjustments to the methods were…

Introductory biology courses form a cornerstone of undergraduate instruction. However, the predominantly used lecture approach fails to produce higher-order biology learning. Research shows that active learning strategies can increase student learning, yet few biology instructors use all identified active learning strategies. In this paper, we…

This article discusses the results of a survey that was posted for those who regularly peruse the website of the National Center for Case Study Teaching in Science (NCCSTS). Faculty members were asked about their use of case studies and videos in their General Biology classrooms. The results are enlightening because General Biology is arguably the…

This account reviews published green chemistry teaching resources in print and online literature and our experiences in teaching the subject to undergraduate students. Effective practices in lecture and laboratory are highlighted and ongoing challenges are addressed, including areas in cutting edge green chemistry research that impact its teaching…

An introductory, multidisciplinary lecture-laboratory course linked with a summer research experience has been established to provide undergraduate biology and chemistry majors with the skills needed to be successful in the research laboratory. This three-credit hour course was focused on laboratory skills and was designed to reinforce and develop…

This study describes an evaluation of the Peer-Led Team Learning (PLTL) reform model in first-semester general chemistry. PLTL was implemented in place of one-third of the available lecture time, maintaining the same amount of structured class time under the reform. The evaluation demonstrates that classes implementing the PLTL reform at the…

The authors explored whether a new pedagogy using personal response systems (clickers) along with case study teaching improved students' perceptions of their understanding of science in large introductory biology classrooms. Twelve faculty from nine institutions and 1,457 students across the United States and Canada participated in this study.…

In recent years, short question-and-answer activities known as lecture tutorials that are designed to help students work with and discover concepts for themselves, rather than simply being told about them (lectured to) have become a popular tool for learner-centred teaching of introductory college astronomy. Students on such a course are usually…