Research has shown that computational thinking and kindergarten mathematics instruction can be integrated; however, evidence of how specific mathematical knowledge relates to computational thinking remains scarce. Additionally, we do not know if and how children's mathematical knowledge co-occurs with computational thinking and how these…

This dissertation is about designing learning environments that foreground students' epistemic agency as they "do science" in a science classroom. I build on the prior work that combines two important strands in learning sciences - agent-based modeling of complex systems and constructionism to design learning environments. I call such…

This study examined the impact of knowledge-building curricula on raising reading achievement for students from high-poverty backgrounds. The overall purpose of the study was to contribute to our understanding of curricula that may be effective in closing achievement gaps for students from lower socioeconomic backgrounds compared to…

One way to bring about change in higher education is to introduce professional development programs for higher education, however these programs have been found to be ineffective at promoting positive change for individuals and departments. To address the need for better programs, I worked on two projects: one project attempts to identify a way to…

This dissertation is a case study of State Public University (pseudonym), a large, public university in the United States, and the promising practice that improved student learning by redesigning an Information Technology course (pseudonym IT-101). The stakeholders were faculty who were involved in the redesign. As part of this qualitative study,…

The purpose of this study was to establish the reliability and validity of the construct map for students' conception of equivalence with special emphasis on investigating the impact of structure of equation on students' conception of equivalence. The study examined the role of structure of equations in identifying students' conception of…

Children construct meaning from their economic experiences in the form of naive theories and use these theories to explain the relationships between their actions and the outcomes. Inevitably, due to their lack of economic literacy, these theories will be incomplete. Through curriculum design that acknowledges and addresses these naive theories,…

This dissertation examined in a state-required, online preservice teacher course in content area reading instruction (CARI) at a large land-grant university in Minnesota. Few studies have been published to date on revitalized literacy teacher preparation efforts in CARI (See Vagle, Dillon, Davison-Jenkins, & LaDuca, 2005; Dillon, O'Brien,…

In opposition to the Sexual Education Traditional Model (SETM) that is used in the state schools of Puerto Rico, the Health Beliefs Model (HBM) appears. It facilitates a curricular design that improves the ability of the students to respond to the group pressure by means of attitudes that stimulate sexual conducts of smaller risk of propagation of…

Although public school teaching by its inherent nature presents numerous classroom challenges, the public high school teacher today is faced in addition with multiple external mandates from several outside stakeholders. Given the established track record of professional learning communities (PLCs) to provide teacher support and development, I…

Engineering education for the pre-college years is a developing academic discipline that emanates from the need to understand and improve the ways that engineers are formally educated. To date, there are no curricula available that incorporate engineering at a preschool level. The focus of this study is on the development of an early engineering…

The purpose of this study was to learn teacher attitudes and beliefs about teaching personal finance, as well as teacher understanding of a few core personal finance concepts. The population consisted of 1,120 classroom teachers from two public school districts in two states. The research questions were: (a) What are teacher attitudes and beliefs…