The purpose of this phenomenological study was to describe and explain teachers' perceptions about effective professional development as well as to identify the environmental factors that affect the teacher participants' ability to engage in and implement various behaviors and beliefs transferred from the professional development experience. Four teachers were studied in depth for one school year, and data collected included in-depth interviews and classroom observations. Findings indicate three main themes related to the research questions, which sought to understand how teachers perceive and describe their experiences of participating in professional development and the factors that support or constrain their instructional decision-making as it relates to new knowledge and skills acquired through professional development. These themes are that: (a) Effective professional development must have a supportive context and meaningful purpose which: meets the physical and cognitive needs of participants; focuses on improving practice, content knowledge, and pedagogy; provides participants with choice, adequate time and ownership of learning experiences; and includes opportunities for sustained learning and accountability; (b) Learning experiences are greatly affected by interpersonal relationships and opportunities for social learning and should be built upon the principles of: taking risks in the learning environment; sharing beliefs in a community of practice …

This dissertation chronicles my search to engage high school English students in inquiry as part of a formal research process. The perspective of critical literacy theory is used to describe the four phases of the problem posing process in shaping student research and action. Grounded in Freire's approach and consistent with Dewey and others who advocate inquiry, action and relevance, Wink's process is built into the instructional plan described in this study. Because of the real-life context of the classroom and the complex social phenomena being considered, a case study methodology was utilized in which multiple sources of data converged to develop the themes. Data sources included the work and artifacts of ten students in a tenth grade English class during the spring semester of 2008. The analysis focuses on the supports, the constraints and the impact of problem posing on the high school research assignment. The analysis, findings, and conclusions contribute to the literature in three areas: audience, reflection and grading.