In recent years, teacher noticing has emerged as a construct to capture the dynamic and situational aspects of teaching expertise that underlies teachers' in-the-moment teaching decisions and actions. In mathematics education research, in particular, teacher noticing has been studied to understand how teachers attend to, and make sense of,…

Student question generation is a constructive strategy that enriches learning, yet is hardly practiced in higher education. The study described here presents a potential model for integrating student question generation into an education setting. In all, 133 students generated questions in groups, answered and assessed the questions of their…

Time is a central concept for astronomy, yet how it is communicated in educational contexts has received insufficient attention in the literature. This study explores how time-related concepts are communicated in the planetarium, by analyzing 34 different planetarium sessions held in a diversity of Portuguese institutions. Sessions were video and…

A process for generating and writing an individual research proposal with or without access to advanced experimental techniques is described herein. This process was first included in a glycoconjugate biochemistry course to increase student interaction with more areas of the field, but the process was designed to be applicable elsewhere as well.…

The use of Moodle quizzes as a continuous assessment and an integral part of the educational methodology in higher education has been analyzed in a case study of physical chemistry subject. Two types of quiz designed with different item types and different settings, called basic quiz (BQ) and thematic block quiz (TBQ), were elaborated making use…

Practice effects are ubiquitous human phenomena that have been scientifically studied for over half a century. They are also among the most directly applicable psychological phenomenon, holding broad implications for any domain involving human expertise, and especially for education. Yet the details of how practice works to improve performance are…

Due to its distinct phenotype and relatively simple inheritance pattern, the phenylthiocarbamide (PTC) loci is frequently utilized in teaching laboratories to demonstrate genetic concepts such as Mendelian inheritance and population genetics. We have developed a next-generation sequencing and bioinformatics approach to analyze the PTC gene locus…

According to the Next Generation Science Standards, science instructional materials can be efficient as long as they integrate three dimensions: science and engineering practices, crosscutting concepts and disciplinary core ideas. However, research investigating the integration of these three dimensions in the content of school science textbooks…

Science teachers use a large number of visual representations and models in science classes to guide students to understand complex phenomena and to learn to conduct scientific inquiry. Fluent formation and use of visual representation involves metavisualization, which is a process related to metacognition and visualization. However, what kinds of…

Science education researchers have found that instructional design focusing more on learners' affective needs can be powerful in nurturing effective and exciting science learning. This paper reports a qualitative study exploring how learners' situational affective experiences are influenced by the interplay of their habitual affective attributes…

High-performance liquid chromatography is one of the primary techniques covered in the undergraduate analytical chemistry curriculum. This technology report describes the use of a portable capillary-scale instrument that can provide similar performance to a benchtop instrument but generates less solvent waste and enables operation in nonlaboratory…

The COVID-19 pandemic is promoting online education. In this concern, not only online teaching of wet laboratory practices is being challenging, but also online teaching of practices in bioinformatics. Here, I discuss the problematic of online teaching practices in bioinformatics and provide fundamental guidelines, especially oriented for beginner…

This article reports on a new device, called a geyser guide, that allows for quantitative measurements of both bubble sizes and kinetics of foam production in the so-called Diet Coke and Mentos experiment. The device is easily constructed, is made using readily available materials, and allows the experiment to be carried out indoors with no mess.…

Secondary school biology teachers constantly face the challenge of finding ways to connect students with topics that are engaging and relevant to them. In-vitro fertilization and other assisted reproductive technologies are increasingly common medical practices that students may hear about in their lives outside of school, whether from hearing…

A solid ball placed on a rotating turntable is known to roll slowly around a circular path, at a speed 3.5 times slower than the turnable itself. If the ball is located in a straight track across a diameter of the turntable, then it accelerates rapidly to the edge. Both effects were filmed in slow motion using a video camera and a cake decoration…