Perturbation of gene expression using RNA interference (RNAi) or CRISPR interference (CRISPRi) is a useful strategy to explore the function of essential genes. In the archaeon "Haloferax volcanii," the CRISPR-Cas system has been adapted as a CRISPRi tool to silence the expression of specific genes. We developed a laboratory class (LC) to…

[This paper is part of the Focused Collection in Investigating and Improving Quantum Education through Research.] Instructors teaching upper-division quantum mechanics have had two primary options when it comes to textbook choice and thus curriculum sequence: starting with wave functions and the Schrödinger equation, referred to as "wave…

This study explored the impact of oxidation-reduction reaction problem difficulty on university students' cognitive load using event-related potentials (ERPs). Forty-eight balanced low and high difficulty problems were designed. Fifteen undergraduate students majoring in chemistry (8 females and 7 males) participated in the study. Results…

Flipped teaching (FT) is an instructional approach centered around students, displacing traditional lectures from the classroom to make room for active learning. Retrieval practice can enhance content recall. This study investigated the effectiveness of lecture-style teaching (TT), FT, and a combination of retrieval practice with FT (FTR) in a…

Students with disabilities (SWD) have consistently been excluded in science in science classrooms. As inquiry-based instruction is the preferred method of science instruction, finding the best ways to teach using inquiry as an inclusive methodology is essential. The Science Writing Heuristic (SWH) is an argument-based inquiry approach that has…

Student engagement in science classroom is an essential element for delivering effective instruction. However, the popular method for measuring students' emotional learning engagement (ELE) relies on self-reporting, which has been criticized for possible bias and lacking fine-grained time solution needed to track the effects of short-term learning…

This study aims to determine the development and feasibility of biology magazine submaterial inheritance traits as a learning media for class IX junior high school. Engaging and effective learning media can increase students' understanding and interest in the material presented. The research method used is research and development (R&D) using…

There is a need to provide more case studies of alternative grading strategies in the biology education literature and report on student perceptions of these strategies. Student participants were instructed using alternative grading strategies and then completed course metacognitive self-reflections. Qualitative content analysis was performed on…

Video instruction has been widely studied and is generally considered as effective as live instruction for teaching scientific concepts and procedures. However, there is limited research on the effectiveness of prerecorded videos for teaching more challenging content. This study conducted a controlled experiment on over 300 high school students to…

Inequity is persistent in science, technology, engineering, and mathematics classrooms despite significant attention to upending it. In order to better understand how and why inequity persists, an analysis is presented of 27 self-identified white male physics faculty and graduate students responding to an interview prompt about the social…

Tangible teaching aids can provide a valuable supplement to traditional textbook-based learning of fundamental STEM concepts. 3D-printed templates detailing the construction of simple parallel and series circuits were incorporated into the lesson plans for 6th-grade introductory physics. Aiming to introduce the concepts of junction and loop rules…

Although student teaching plays a crucial role in teacher preparation programs, limited research has examined the specific features of this experience that positively impact preservice science teachers' (PSTs) questioning competency. This multi-case study contributes to the existing body of research by presenting findings from an initiative in a…

The forming of microplastics in the environment continues be a global problem with damaging risks to ecosystems and human health. Currently, most microplastic studies concentrate on water and air, while research focus on terrestrial samples such as soil still lags behind. This project reports the first results of our effort to develop and…

During 2020 a free, 3-month long, certificate-granting, online workshop was offered to increase undergraduates' knowledge, skills, self-efficacy, and interest in observational seismology and scientific computing. Course registrants were comprised of 760 upper-level undergraduates from across science and math majors, representing 60 countries.…

This study explored science teachers' beliefs regarding the integration of simulations in inquiry-based science teaching (IBST) toward improving inquiry-based learning (IBL), both being grounded in constructivist principles in promoting critical and innovative thinking, scientific literacy and learner autonomy. Teachers' beliefs are crucial to…