Drawing appropriate diagrams is a useful problem solving heuristic that can transform a problem into a representation that is easier to exploit for solving it. One major focus while helping introductory physics students learn effective problem solving is to help them understand that drawing diagrams can facilitate problem solution. We conducted an…

The knowledge and skills required of chemists in chemical-based industries were compared to those in the undergraduate chemistry curriculum in Nigeria to establish whether there were gaps between the two. In a questionnaire survey, 120 chemists in 20 chemical-based industries gave their views of the extent to which the chemistry curriculum…

The purpose of this study was to elucidate and describe students' thinking when making connections between substitution and elimination reactions and their corresponding reaction coordinate diagrams. Thirty-six students enrolled in organic chemistry II participated in individual, semi-structured interviews. Three major themes were identified that…

The practice of RNA isolation in undergraduate experimental courses is rare because of the existence of robust, ubiquitous and stable ribonucleases. We reported here modifications to our original protocol for RNA isolation from plant tissues, including the recovery of nucleic acids by ethanol precipitation at 0 degrees C for 10 min and the…

In this paper we explore how different ways of training communication skills can be successfully implemented in higher education, and which effects these activities may have on science students' learning. Using content analysis, we studied a material consisting of 34 reports, written by 70 academic science teachers, as part of a teacher-training…

This article discusses our investigation regarding nature of science (NOS) implementations and epistemological beliefs within an undergraduate introductory astronomy course. The five year study consists of two years of baseline data in which no explicit use of NOS material was implemented, then three years of subsequent data in which specific NOS…

Problems with understanding concepts and mechanisms connected to plant movements have been diagnosed among biology students. Alternative conceptions in understanding these phenomena are marginally studied. The diagnosis was based on a sample survey of university students and their lecturers, which was quantitatively and qualitatively exploratory…

Formative assessment, bilingualism, and argumentation when combined can enrich bilingual scientific literacy. However, argumentation receives little attention in the practice of bilingual science education. This article describes the effect of a formative assessment-based pedagogical strategy in promoting university students' argumentation. It…

Acquiring conceptual understanding seems to be one of the main challenges students face when studying organic chemistry. Traditionally, organic chemistry presents an extensive variety of chemical transformations, which often lead students to recall an organic transformation rather than apply conceptual knowledge. Strong surface level focus and…

An institutionalized program of peer-led study groups (PLSG) adds instructional power to our large-enrollment introductory organic chemistry courses. Concomitantly, there is a challenge to keep the instructional philosophy and subject matter coherent with the faculty expectations and goals across this diverse group of undergraduate instructors.…

Research in organic chemistry education has revealed that students often rely on rote memorization when learning mechanisms. Not much is known about student productive resources for causal reasoning. To investigate incipient stages of student causal reasoning about single mechanistic steps of organic reactions, we developed a theoretical framework…

A study was conducted to investigate the extent to which previous science achievement affected student performance in traditional hands-on and virtual laboratory environments. A sample of 70 first-year college students was employed in a counterbalanced A-B-A-B experimental design. The study spanned four instructional weeks of laboratory…

Presented is a quantitative study on top-performing undergraduate science majors at a mid-size, master's large, public institution in the United States' South for the purpose of improving understanding of how motivation to learn science affects a student's decision to leave or remain in the sciences. The Science Motivation Questionnaire (SMQII)…

Based on a previous analysis of student reflection responses, we developed and implemented a hybrid reflection activity that allowed students to choose among a "Muddiest Point" prompt or a "Most Surprised" prompt, or to use both. We examined and coded student responses from two different courses and determined that each prompt…

A student-made galvanic cell is proposed for temperature measurements of cell potential. This cell can be easily constructed by students, the materials needed are readily available and nontoxic, and the solution applied is in an attractive color. For this cell, the potential values are excellently reproducible at each temperature, and the…