Knowledge-producing practices in sciences and engineering increasingly use computational means for modeling and working with data. Despite consensus regarding the importance of computational thinking in science and engineering, scholars differ in conceptualization of the primary purposes and role of its integration in K-12 science (Kafai &…

Multilingual learners (MLs) bring numerous resources to science learning contexts. In classrooms, multilingual learners have expansive linguistic repertoires to draw upon for information-seeking (Gynne & Bagga-Gupta, 2015), collaboration (French, 2016; Garcia & Sylvan, 2011), and learning (Vygotsky, 1978). However, within US secondary…

 Today's elementary teachers are expected to teach the engineering practices included in the National Research Council's Framework for K-12 Science Education and the Next Generation Science Standards. Recent studies have indicated that teachers are less self-efficacious in teaching engineering than in other subject areas. Project Lead the…

Multilingual learners (MLs), or students in the United States who are learning English as an additional language, possess knowledge from their lives outside of the classroom that science teachers can draw upon when giving instruction. This three-paper dissertation examines teacher use of these unique sources of knowledge, known as funds of…

This convergent mixed methods study sought to explore the effects of engineering design challenges (EDCs) on middle school students' achievement. Data was collected from four middle schools from an urban school district in Maryland. Two of these, Group A, included teachers with experience with EDC design and implementation; the other two schools,…

The opportunity to innovate, experiment, and take chances in the classroom should be accessible to all students regardless of the social identities they hold; however, white women and women of color (WOC) in male-dominated physics, engineering, math and computer science (PEMC) learning environments, and STEM broadly, have been expected to take…

In 2013, a new set of science standards was introduced for K-12 science education, called the Next Generation Science Standards (NGSS), which focused on three dimensions of science learning that work together: disciplinary core ideas, crosscutting concepts, and science and engineering practices. These standards are novel in their emphasis on…

The problem addressed in this study was high school science teachers' lack of understanding of science, technology, engineering, and mathematics (STEM) and clarity for the integration of Next Generation Science Standards (NGSS) approaches to align standards in STEM with high school science education. The purpose of this qualitative case study was…

The human brain is a byproduct of the natural process of evolution, as is the knowledge it contains. Like other natural resources fit for human consumption, knowledge can be modeled as a physical entity that can be sought after and acquired. In ancient times, knowledge was geographically constrained as a consequence of being a physical entity…

Instructional explanations are an ubiquitous component of classroom instruction, but are relatively neglected in science education when compared to other facets of teaching and learning. The ubiquity of instructional explanations and their potential to stimulate learning in students suggests that they should garner more attention from science…

The need for scientifically literate citizens is an urgent priority, exacerbated by the Covid-19 pandemic of 2020. Despite the importance of scientific literacy, elementary schools across the nation have not made science instruction a priority in their school day. On average, elementary students spend 40% less instructional time in science…

This dissertation describes a practitioner's design-based development of a prototype chatbot to guide students in learning biological concepts of genetic mutations and protein synthesis. This chatbot's architecture provides learning activities, feedback, and support throughout a series of short, connected lessons. The chatbot is designed to…

Since the launch of Sputnik by the U.S.S.R. on October 4, 1957, the United States has aimed to bolster nationwide STEM education with the intention of creating a strong STEM pipeline. Despite many efforts, there remains a distinct lack of diversity in the STEM career fields, and many people cannot accurately describe what engineers do. These two…

The purpose of this interpretative phenomenological analysis study was to understand the perspectives of Massachusetts biology teachers and discover if the 2016 changes to the Massachusetts Science, Technology, and Engineering (STE) Curriculum Frameworks impacted their instructional practices and pedagogy. Concentrating on the consequences of…

This study investigates how students can use "interactive example models" in inquiry activities to develop their conceptual knowledge about an engineering phenomenon like electromagnetic fields and waves. An interactive model, for example a computational model, could be used to develop and teach principles of dynamic complex systems, and…