DEVS (Discrete Event System Specification) is a formalism that was introduced in the mid-1970s by Bernard Zeigler, for modeling and analysis of discrete event systems. DEVS is essentially a formal mathematical language for specifying complex systems through models that can be simulated and has been executed in object-oriented software, DEVSJava…

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…

Differentiated instruction has emerged as a research-based approach to teaching that meets the diverse needs of students based upon learner readiness, interests, and learning profile, grounded in the socio-cultural, multiple intelligences, and brain-based learning theories. The purpose of this basic qualitative inquiry was to explore teachers'…

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…

Competency-based education (CBE) has become well-accepted as a powerful way to personalize learning. Today's advanced technologies have enhanced CBE even further. Practitioners in the field are seeking means to take advantage of technology to increase CBE's effectiveness and efficiency, especially for adult learners. Microlearning and digital open…

The purpose of this case study was to examine student technology choices when given the freedom to choose technology devices to complete a project-based learning activity in a content area of study. The study also analyzed factors affecting technology choice as well as how technology proficiency scores aligned to technology choices. Patterns and…

There are two primary challenges for instructors in offering a high-quality course at large scale. The first is scaling educational experiences to such a large audience. The second major challenge encountered is that of enabling adaptivity of the educational experience. This thesis addresses both major challenges in the way of high-quality…

Abundant research and literature suggest the unreflective use of PowerPoint (PPT)-type presentations to deliver core content in higher education classes may have a negative effect on student learning (Driessnack, 2005; Kinchin et al. 2008; Maxwell, 2007). Many students rely heavily on downloadable notes from electronic delivery to the exclusion of…

Among educational researchers and practitioners, there is a growing interest in employing computer games for pedagogical purposes. The present research integrated a technology education class and a science class where 5th graders learned about environmental issues by designing games that involved environmental concepts. The purposes of this study…