This work describes the design and testing of a low-cost light-emitting diode (LED)-based nephelometer for turbidity analysis. It also describes the use of this nephelometer for context-based learning (CBL) experiments designed for teaching laboratories. The LED nephelometer is simple, low-cost, and robust, providing similar results as a…

Asking students to explain why phenomena occur at a molecular level is vital to increasing their understanding of chemistry concepts. One way to elicit students' mechanistic reasoning and guide construction of knowledge is through Writing-to-Learn (WTL), which is a promising approach for students in organic chemistry courses. In the design of WTL…

Genetics is known to be one of the most challenging subjects in biology education because of its abstract concepts and processes. Therefore, hands-on experiments in authentic learning environments are supposed to increase comprehensibility and provide otherwise unavailable experiences to students. We applied a hands-on module in an out-of-school…

Although teachers' instruction has been extensively studied, there is a dearth of research investigating how teachers design lessons and integrate new information into their existing lessons. This study utilized a case study approach to examine how teachers engaged in a nanoscale science professional development experience integrated new science…

An increasing number of introductory physics courses are seeking to incorporate "authentic practices," and a large area of focus in this trend is the incorporation of computational problems into the curriculum. These problems offer students an opportunity to engage with the programming practices and numerical problem-solving methods used…

This research was conducted on two groups of pre-service elementary teachers (PSETs) (N = 38) in a pre/post within-subjects design. Participants were asked to critique, create, and evaluate the use of virtual reality (VR) classroom applications during a three-stage intervention. Pre/post questionnaires assessed the change in attitudes toward using…

Many students possess their own unique potential and "genius," but seem to base their worth on the status of grades instead of their connection to education itself. Antonio Salieri, for instance, created wonderful, emotionally binding music throughout his lifetime. Salieri however, never saw the beauty in his work because Mozart, a child…