In this study, the relationship between students' chemistry self-efficacy beliefs and metacognitive awareness was investigated utilizing a path model. There were 268 chemistry high school students (59% 10th grade and 41% 11th grade) participated in the study. The students took two-hour chemistry course in the 9th and 10th grade and three-hour…

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)…

Personal response systems are quickly becoming indispensable formative assessment tools in many college-level chemistry courses. With the use of such devices, students are provided with invaluable insights into the skills perceived by the instructor as important, while concurrently, the instructor can gather feedback as to how well students have…

A key to achieving academic success in science is providing students with meaningful experiences and skills to negotiate how these experiences affect them and the society in which they live. Although students strive for academic success, a challenge that faces many urban science students and their teachers is finding ways to promote student…

An update to the thermochromic cobalt(II) chloride equilibrium demonstration is described. Filter paper that has been saturated with aqueous cobalt(II) chloride is heated for seconds in a microwave oven, producing a color change. The resulting pink and blue map is used to colorfully demonstrate Le Châtelier's principle and to illuminate the hot…

The use of the curved-arrow notation to depict electron flow during mechanistic processes is one of the most important representational conventions in the organic chemistry curriculum. Our previous research documented a disturbing trend: when asked to predict the products of a series of reactions, many students do not spontaneously engage in…

The Radiochemistry Program at the University of Nevada, Las Vegas (UNLV) has a Radiation Protection Program that was designed to provide students with the ability to safely work with radioactive materials in quantities that are not available in other academic environments. Requirements for continuous training and supervision make this unique…

A simple experiment was devised to let students determine the solubility and solubility product, "K"[subscript sp], of calcium sulfate dihydrate in a first-level laboratory. The students experimentally work on an intriguing equilibrium law: the constancy of the product of the ion concentrations of a sparingly soluble salt. The determination of…

This paper calls attention to the early work of the American chemists Worth Rodebush and Groves Cartledge, and their anticipations of a quantitative electronegativity scale, which predate the classic 1932 paper of Linus Pauling by several years. (Contains 2 figures.)

In undergraduate chemical thermodynamics teachers often include equations and view manipulations of variables as understanding. Undergraduate students are often not able to describe the meaning of these equations. In chemistry, enthalpy and its change are introduced to describe some features of chemical reactions. In the process of measuring heat…

"Proceedings of International Conference on Education in Mathematics, Science and Technology" includes full papers presented at the International Conference on Education in Mathematics, Science and Technology (ICEMST) which took place on March 24-27, 2022 in Antalya, Turkey. The aim of the conference is to offer opportunities to share…

This article outlines the reasons why practical work is declining in schools. Microscale chemistry is put forward as a sustainable way of remedying this. The advantages of its use are outlined, including a description of some practical techniques that can be used to illustrate these advantages. There is also a description of how you can make the…

Mapping methods employed by geographers, known as diffusion cartograms (diffusion-based density-equalizing maps), are used to present visually interesting and informative plots for data such as income, health, voting patterns, and resource availability. The algorithm involves changing the sizes of geographic regions such as countries or provinces…

"Proceedings of International Conference on Education in Mathematics, Science and Technology" includes full papers presented at the International Conference on Education in Mathematics, Science and Technology (ICEMST) which took place on April 1-4, 2021 in Antalya, Turkey. The aim of the conference is to offer opportunities to share…

The Qatari government has made significant changes in the organization and staffing of schools over the past decade in an effort to improve the academic performance of school-aged citizens. Of interest is the need to encourage teachers to move from a didactic teacher-led mode of instruction to one that is more student-centred, but also…