Pre-service science teachers develop their teaching practices within and across the university and school contexts of their teacher education programs. The practices and visions of teaching and learning emphasized in each context are often disjointed, a problem referred to as the "two-worlds pitfall." Responding to the call for teacher…

In this study, I documented, analyzed, and compared the thought processes of six high school science teachers during twenty minutes of planning for NGSS-aligned instruction. Teachers' thoughts were captured using a virtual revisit think-aloud protocol and their thoughts were analyzed and compared using a novel tool called a thinking web. A…

This mixed methods study explored how elementary teachers reported using a commercially published instructional unit to plan and deliver science instruction in their elementary classrooms. Of particular focus is what elements of the program teachers eliminated during planning and instruction, what outside materials teachers added to instruction,…

This study was an action research self-study that examined my role as a teacher educator supporting a resident teacher in learning how to design inquiry-based culturally responsive science lessons. I explored my own growth in understanding how to act as a teacher educator to provide appropriately scaffolded support to promote learning for a…

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,…

This qualitative action research study examines how middle and high school STEM teachers create and implement lessons that connect concepts to the real-world and develop student metacognition. The researcher collected data through interviews, focus groups, document analysis, and survey questions. Participants from vocational, private, and…

Sixth-grade science students at Gauger-Cobbs Middle School in Newark, DE, had misconceptions about how heat energy moves in the hydrosphere through conduction, convection, and radiation. As a result, students struggled to develop and connect ideas that correctly and completely explained heat transfer in the hydrosphere at the end of the lesson…

Professional development programs aim to make long-lasting change to teacher practice. However, these programs are often short-lived due to limited personnel, cost, and time constraints. Using an actor-oriented approach, this study aimed to understand how teachers transfer their learning from a professional development program focused on…

It is critical to provide inservice elementary teachers the opportunity to advance their science instruction, which in turn can positively impact not only their practice but also their perceptions towards science teaching and learning. Too often, science-specific professional development (PD) programs are scarcely provided as a result of an…

This dissertation sought to understand the evolution of four elementary teachers' (grades 1-3) teaching of science with representations over the course of one year of participation in a multi-structured professional development (PD) project referred to as RepTaL. The notion of learning to teach science using a range of representations is a…

Scientific modeling is a scientific practice that uses models to prepare elementary and middle school science teachers to engage students using scientific inquiry. Model-based inquiry (MBI) is a pedagogical teaching approach that engages students using scientific inquiry during scientific modeling. However, preservice teachers lack understanding…

The purpose of this study was to explore the relationships among science self-efficacy, beliefs, and professional noticing skills of elementary science teachers with multiple lesson study experiences. Effective implementation of the Next Generation Science Standards require that many teachers shift their pedagogical approach from a traditional…

The purpose of this study was to create a culturally relevant, inquiry-based science lesson plan and examine how I can become a more culturally relevant educator. This was done first through the use of seminal frameworks in both pedagogies to examine similarities and differences. Secondly, eight experts in the fields were interviewed to gather…

While it is well established that pedagogies purposefully linking subject matter to students' cultural contexts and prior knowledge can help students learn subject matter, little is known about practices for so doing in undergraduate biology courses enrolling substantial numbers of racially, culturally, and otherwise diverse students. This study…

The purpose of this study was to examine novice secondary science teachers' enactment of their teaching philosophies in their lesson planning and teaching. The framework was based on three theories: approximations of practice, teachers' knowledge of content and students (KCS), and experiential learning. The design for this research used a…