Prior research in mathematics education confirms the significance of representations as an integral part of curriculum standards. The effective teaching of representations is related to teachers' content and pedagogical knowledge. A teacher must know the salient features of the mathematical concept as well as the attributes of various…

As educational accountability pressures and science teacher attrition rates within American public-school systems continue to rise, so does the need for improved reform-based professional development (PD) opportunities that allow science educators to challenge their pedagogical beliefs and teaching practices. This qualitative case study explores…

This study investigated how problem-solving videos can be used in video-mediated professional learning to support secondary preservice mathematics teachers (PMTs) in developing teacher knowledge for noticing student thinking in the context of the derivative concept in calculus. A model of the trajectory of PMTs' noticing was constructed as six…

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…

Instructional technology in courses of K-12 level for English as a Foreign Language (EFL) learners demonstrates numerous benefits for their learning, including increased engagement and improved academic outcomes. However, integrating technology into teaching practices heavily relies on teachers' competence in technology. Even though teacher…

Online learning continues to grow at unprecedented rates. K-12 had more than 275,000 students enrolled in full-time virtual schools in 2011--2012 and over 2 million participating in at least one online course. Despite this growth, there is little research on model formation and model validation for online learning. Two research-based models were…

Using a learning management system (LMS) to deliver robust content for K-12 students became an essential part of the discussion of technology's place in K-12 education when teachers were forced to teach online at the start of the COVID-19 pandemic. Teachers used an LMS to deliver content in various ways and as part of different instructional…

The primary focus of this Executive Leadership Portfolio (ELP) is to investigate whether teachers who actively participate in professional development designed to model best practices and explore digital technology would incrementally change their instructional moves to include these practices and technologies. The literature presented within this…

Community college online mathematics courses have the highest course attrition rates among all subject matters and degree levels. The problem could be addressed through professional development and assessment tools generated with the core foundations of TPACK framework--integrated knowledge between technology, pedagogy, and content. Using the…

This three-article dissertation considers the pedagogical practices for developing statistically literate students and teaching data-driven decision-making with the goal of preparing students for civic engagement and improving student achievement. The first article discusses a critical review of the literature on data-driven decision-making…

Public school teachers within a Pennsylvania intermediate unit are receiving inadequate job-embedded professional development that recognizes knowledge of content, pedagogy, and technology integration, as outlined by Mishra and Koehler's Technological Pedagogical Content Knowledge (TPACK) framework (2006). A school environment where teachers are…

This multiple case study investigated how teachers utilized C3 Framework-aligned instructional materials created with the Inquiry Design Model in unique contexts. Contextual factors related to how teachers enacted and experienced the C3 Framework were explored, in addition to how they planned, implemented, and assessed C3 Framework-aligned…

Innovative and ambitious efforts are taking place to implement the new vision for science education--the Next Generation of Science Standards (NGSS) in the United States. To implement this new vision, teachers must reconsider how they use their science content knowledge (SCK) and pedagogical content knowledge (PCK) in new ways that require…

Background/Context: Science is in the midst of reform, shifting away from teaching science and mathematics in isolation from one another, toward a model that prioritizes integration of science, technology, engineering, and mathematics (STEM) learning environments. Since teachers are the most important factor in determining the success and…

This dissertation examines the pedagogical beliefs and instructional practices of community college faculty members. The dissertation uses a qualitative interpretive inquiry approach to explore the contextual understanding of pedagogy and teaching of community college. Drawing from the theoretical framework of pedagogy, teaching and beliefs, this…