Background: Video lectures which include the teachers' presence have become increasingly common. As teacher enthusiasm is a nonverbal cue in video lectures, more and more studies are focusing on this topic. However, little research has been carried out on the interactions between teacher enthusiasm and prior knowledge when learning from video…

Guided and open inquiry strategies are found to improve students' attitudes toward science. Yet, confirmation and structured inquiry are more often enacted by teachers. The effectiveness of these approaches involving high teacher guidance remains unexplored. Students in six classes (N = 119, M[subscript age] = 11.25 years) were assigned to control…

Although the chemical literature contains many studies of multimedia-based learning and teacher enthusiasm, there is a paucity of research on whether and to what extent teacher enthusiasm in video lectures affects students' learning, especially in chemistry. In this context, this mixed-method study used eye tracking and quantitative analysis to…

Difficulty index and its derivative performance index (PFI) have been commonly used to measure student learning outcomes. However, these indexes have a high volatility and low sensitivity. This work has established the simplex learning index (SLI), which has a low volatility and high sensitivity. To construct SLI, students were divided into two…

The research on students' perceptions after implementing a teaching style is recommended due to its potential to inform reformed education. The present study surveyed 319 students and revealed their perceptions of multimedia usage in teaching and learning quantum physics. Among these students, 156 were surveyed after learning quantum physics with…

We investigated students' knowledge and beliefs about the impact of using three-dimensional (3D) multimedia presentations. Students listened to a lecture about the ventricular system, which was presented alone (Experiment 1 only) or with a 3D or a 2D video illustrating the system. Afterwards, students judged how well they would perform on a…

We discuss an investigation of the difficulties that students in a calculus-based university introductory physics course have with electric field and the superposition principle for the case of a continuous charge distribution and how that research was used as a guide in the development, validation, and evaluation of a tutorial on these topics to…

In this study, the authors examined the survivability, or persistence over time, of overall science instruction for English learners (ELs) in treatment and control classrooms within a field-based, quasi-experimental grant-funded project in the United States. The project's goal was to increase ELs' science and language achievement through…

Team teaching is an innovative method to engage the large group and make lectures more interesting. The aim of the study is to evaluate the impact of team teaching in first year biochemistry lecture classes. After obtaining ethical clearance, 150 first year medical undergraduate students participated in the study on a voluntary basis. Topic…

We designed a rubric to assess free-response exam problems in order to compare thinking skills evidenced in exams in classes taught by different pedagogies. The rubric was designed based on Bloom's taxonomy and then used to code exam problems. We have analyzed historical and recent exam problems in both algebra-based and calculus-based exams. In…

This article is a guided pedagogical approach, devoted to postgraduate students specializing in biochemistry, aimed at presenting all single reactions and overall equations leading to the metabolic interaction between ureagenesis and citric acid cycle to be incorporated into a two-three lecture series about the interaction of urea cycle with other…

This article describes the course design and teaching methodology for a polymer chemistry and applications lecture class specifically aimed at small college and university instruction.

A teaching team composed of a faculty member (lecture) and a graduate teaching assistant (lab) endeavored to engage students enrolled in several sections of the same organic chemistry course through the use of social media. Students were encouraged to follow both instructors on Twitter and were asked to share aspects of the class using the social…

This study measured student engagement in real time through the use of skin biosensors, specifically galvanic skin response (GSR), in a large undergraduate lecture classroom. The study was conducted during an intervention in an introductory-level biology course (N = 420) in which one section of the course was taught with active-learning approaches…

The concepts of the Coriolis and the centrifugal force are essential in various scientific fields and they are standard components of introductory physics lectures. In this paper, we explore how students understand and apply concepts of rotating frames of reference in the context of an example lecture demonstration experiment. We found in a…