We present a computer-based experiment that simulates the accretion process and generates fluffy aggregates with fractal nature. The Box Counting is performed without the aid of an image processing tool by using the coordinate information of the constituents of the aggregate. A simple algorithm to create aggregate and calculate box-dimension will…

With the adoption of instructional laboratories that require students to make their own decisions, there is a need to better understand students' activities as they make sense of their data and decide how to proceed. In particular, understanding when students do not engage productively with unexpected data may provide insights into how to better…

This article describes a simple setup of electrospinning using widely available resources. The Arduino board, an electronic platform that is commonly accessible was adapted for a controller. Specifically, recycled parts consisting of plastic gears and a lipstick case were incorporated for the construction of a syringe pump. A cheap DC-DC converter…

A quantitative experiment where we measure the acceleration of spheres of radius "R" rolling on an inclined U-shaped profile of width "2D" is presented. For a given inclination, we examine the behaviour of four solid spheres having different diameters; in contrast to what is usually assumed to be the case, the experimental…

Using a phenomenological lens, we investigated how online curriculum resources can support secondary science teachers to explore contemporary science practices with their students. The research used a social constructivist theoretical and a hermeneutic phenomenology methodological framework to describe and interpret the teacher/participants'…

Chemistry of the environment has been a long-standing and important area of scientific research. Atmospheric chemistry is of particular interest in society due to the impact that rising levels of pollutants are having on the climate. It is well-known that combustion processes create CO and NO[subscript x], which leads to the creation of other…

This contribution reports the process and outcomes of a multiyear effort that supported institutions in reforming general chemistry using multidimensional learning approaches in the form of performance expectations. Performance expectations are based on evidence-centered assessment design principles and describe what learners should be able to do…

Aldol chemistry is highlighted in many introductory organic chemistry laboratory experiments because it provides synthesis, mechanism, and experimental challenges for students. In the experiment described here, students synthesize dibenzalacetone derivatives by crossed aldol condensation, observe reaction rates using a semiquantitative rubric, and…

Every day we deal with chemistry in various forms, but sometimes we don't see that. An example is biosensors that help us to evaluate health conditions, monitor environmental pollution and ensure food freshness. The most well known (and most widely sold) is the biosensor for blood glucose measurement, used every day by people with diabetes.…

This study aims to investigate the impact of the use of blended learning on the achievement of Dentistry College students on a physics course at Ajman University. It compares the results of different ways of teaching the 'Practical physics course'. The study was conducted using a quasi-experimental case study design. The participants of the study…

The article proves that formation of foreign-language communicative competence is one of the core objectives of teaching Russian as a foreign language. The author proves that foreign-language communicative competence is a complex construct which includes linguistic, substantive, and pragmatic competences. Preparatory departments are to create an…

Game-based learning refers to establishing learning environments that involve digital or non-digital games to enhance students' knowledge and skill acquisition. Previous studies indicated that game-based learning is superior to the conventional instructional method, but few compared the differences between different game types. This study examined…

Providing students with timely, targeted, and useful feedback regarding their understanding of course topics is generally accepted as a good educational practice. However, when classes are very large there are challenges that prevent many instructors from accomplishing this goal. This study explores the perceived helpfulness to students and the…

While cooperative learning (CL) has gained considerable attention in the current discourse about undergraduate quality education, it is minimally used in higher education classrooms, particularly in the developing countries context. Using a non-equivalent control groups design and a sample of undergraduate students (n = 340) from Jimma University,…

Education is changing rapidly. Schools are gradually shifting away from the traditional mode of instruction and toward a more active model of learning, in which students are collaborating on projects in small groups and then sharing their work with the class. Africa cannot afford to be left behind in this change. Though collaborative teaching and…