In recent years, video-based lectures have been increasingly used in education as part of flipped classroom approaches, adult education, distance learning, and other applications. Though approaches in video-based lectures have been widely studied, less has been reported in the development of approaches to teach relevant technical skills, such as…

How does an instructor capture students' attention in a guest lecture or one-shot class? In this article, the author presents some strategies to attract and maintain students' interest in a 60-90 minute session, which explore methods for understanding students' needs, obtaining buy-in, showing enthusiasm, and incorporating in-class activities. A…

Getting students to ask questions in class, about the content, can be a difficult undertaking especially once students get to university. The nature of the lecture format makes it problematic for students as they often feel like they can't ask questions. When children are small they ask questions all the time. Sometimes we get tired of them asking…

This paper presents a model for teaching large classes that facilitates a "small class feel" to counteract the distance, anonymity, and formality that often characterize large lecture-style courses in higher education. One author (E. P.) has been teaching a 300-student general education critical thinking course for ten years, and the…

Professional journals serve the vital scientific function of disseminating knowledge to colleagues. In so doing, journals become the "face" and "voice" of the professional disciplines they represent. Journal content shows the major topics of interest, the scope, and the boundaries of the profession. It shows the techniques and methods of research…

A molecule coming from outside an organism can form a ligand-receptor complex. Upon its formation, a message is transmitted, for example, to certain cells. In this way, two enantiomers can emit messages that differ, either quantitatively or qualitatively. In the present article, these facts are taken as a common basis for the actions of chiral…

When video recordings of Ravi Janardan's computer-science course at the University of Minnesota-Twin Cities first went online, the students loved it. Instead of dragging themselves out of bed for the 8 a.m. lectures, many started skipping classes and watching the recordings instead. Recording lectures is becoming more and more common, and many…

When a college instructor goes out of town and must miss a lecture, the standard options are to cancel the class meeting or to enlist a colleague to fill in. In the former case a teaching opportunity is lost; in the latter the substitute may not lead the class in the same way as the instructor. Some students routinely skip lectures by a guest…

Anyone who has taught a lecture to a large group of students has probably experienced undesirable student behaviors. The author, who has taught an introductory college biology course at Syracuse University for 45 years, relates that an important part of his teaching philosophy is that everyone should learn from everything that they do, and…

The reaction time of a group of students majoring in physics is reported here. Strong correlation between fatigue, reaction time and performance has been observed and may be useful for academicians and administrators responsible for working out timetables, course structures, student counsellings, etc. (Contains 5 figures, 1 table, and 1 footnote.)

A peer mentoring program was added to an introductory chemistry course at a large university. The introductory chemistry course prepares students with little or no previous chemistry background to enter the mainstream general chemistry sequence and is part lecture and part small-group problem-solving. Faculty instructors are responsible for the…

Lecture listening is one of the most common classroom experiences for college students. Unfortunately, students are relatively inefficient notetakers in these situations; in fact, students record less than 40% of the information from lectures. This experiment explored the effects of two lecture cues, immediacy and organizational statements, on…

The biochemistry lecture is often the place where students receive the greatest exposure to the structural nature of biomolecules. The use of molecular visualization software and web-based animated tutorials has enhanced the way instructors teach this important area of structural biology. Using the software and tutorials in class is an excellent…

Much of modern mathematical research requires a serious level of commitment and ability on the part of the researcher and, as a natural consequence, precludes any real involvement by undergraduate mathematicians. However, to put it crudely, Computer Algebra Systems, can make experts of us all. With the use of such systems even the average…

The effect of a lecture pausing procedure on performance of 15 learning-disabled and 15 nondisabled college students was evaluated. Findings indicate that 2-minute pauses spaced at logical breaks during videotaped lectures effectively enhanced student performance on immediate free-recall and objective test measures but not on long-term free…