This dissertation targets young students' developing knowledge relevant to a fundamental practice in academic mathematics: the use of diagrams to represent idealized mathematical objects whose properties are established by definition (as in the use of drawn dots to represent zero-dimensional points and drawn lines to represent one-dimensional…

This study tested the hypothesis that exploratory learning, with and without analogous problems, would improve students' ability to make connections between conceptually-related topics. In this randomized experiment, undergraduates in introductory physics (N = 171) studied a new topic under three different instructional conditions. Order and type…

This qualitative study examines the use of in a one-to-one initiative at an elementary school. Digital Didactical Design serves as the framework for this research which seeks to identify the ways in which teachers are using iPads[TM], the attributes of meaningful learning present in their instruction, and the benefits, challenges, and outcomes of…

This descriptive case study approach with multiple cases and an interrupted time-series design used quantitative and qualitative data to answer two research questions: 1) What changes occur over time in the problem-solving strategies, text-reading accuracy, and phonological knowledge of struggling readers in response to targeted instruction in an…

Research shows that U.S. students continue to lag behind in science and mathematics internationally (Fleischman, Hopstock, Pelczar, & Shelley, 2010; Provasnik et al., 2012). A recent study found there is a direct link between students' mastery of academic subjects and their ability to collaboratively problem solve, a critical 21st century…

Entrepreneurship programming has become a very popular choice among higher education students the past three decades. Entrepreneurial intent is consistently regarded as the greatest predictor of entrepreneurial behavior and success of entrepreneurial education programs, while ideation is viewed as a key skill needed for successful entrepreneurial…

The purpose of this causal comparative study is to determine whether the assistant principal decision-making process and their years of experience influence the advanced diploma rates in high schools on Long Island, New York. The subjects for this study were 75 assistant principals in Long Island high schools during 2016. Assistant principals'…

This study focused on discovering what instructors' experiences help elementary school students develop not only academically but also socially. This qualitative multiple case study method was guided by Yin, and the purpose of the study was to investigate effective instruction strategies from the perspective of instructors who worked in an…

Math fluency, which refers to the ability to solve single digit arithmetic problems quickly and accurately, is a foundational mathematical skill. Recent research has examined the role of phonological processing, executive control, and number sense in explaining differences in math fluency performance in school-aged children. Identifying the links…

The current study evaluated the effects of modified schema-based instruction (SBI) on the algebra problem solving skills of three middle school students with autism spectrum disorder and moderate intellectual disability (ASD/ID). Participants learned to solve two types of group word problems: missing-whole and missing-part. The themes of the word…

English learners (ELs) constitute one of the largest subgroups enrolled in the US public education system. The state of California has an estimated 1.5 million ELs in kindergarten through Grade 12. This mixed methods study employed improvement science principles to understand how three high school physics teachers implemented project-based…

The United States faces a shortage of well-qualified, technically skilled individuals entering manufacturing and energy production fields. Compounding this shortage, employers want graduates to possess technical knowledge foundational for these highly-skilled positions, as well as less tangible 21st century work skills. Technical colleges are…

With the expansion of computer science (CS) education, CS teachers in K-12 schools should be cognizant of student misconceptions and be prepared to help students establish accurate understanding of computer science and programming. This exploratory design-based research (DBR) study implemented a data-driven approach to identify secondary school…

Researchers have found executive functioning (EF) to be important for reading and math performance but have paid less attention to their role in writing. Van Dijk and Kintsch (1983) identified three levels of writing: microstructure, macrostructure, and superstructure. The existing work on EF and writing has several limitations: researchers have…

This study begins with the belief that the ways in which teachers see and attend to educational encounters matter for their actions in classrooms. Using microethnography as a framework, this dissertation explores the relationship between teacher candidate attention, problem formulation, and action. Through analysis of the M.Ed. inquiry reports of…