The Mediating Effects of Science Classroom Talk on the Understanding of Earth-Sun- Moon Concepts with Middle School Students Who Are Deaf Or Hard of Hearing
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The Mediating Effects of Science Classroom Talk on the Understanding of Earth-Sun- Moon Concepts with Middle School Students Who are Deaf or Hard of Hearing Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Shannon M. Clancy, B.A., M.S. Graduate Program in Education: Teaching & Learning The Ohio State University 2017 Dissertation Committee: Tiffany A. Wild, Advisor Peter V. Paul Mollie Blackburn Copyright by Shannon Marie Clancy 2017 ABSTRACT The purpose of this study was to describe middle school DHH students’ understandings (and/or misconceptions) of the Earth-Sun-Moon relationship before and after completion of a 10-day instructional unit and to examine the change in understandings from pre- to post-instruction. Analysis focused on students’ conceptual understandings both before and after participation in an instructional unit on the Earth- Sun-Moon relationship. Data from classroom observations conducted during instruction were analyzed to determine the influence of classroom talk on students’ understanding of concepts. The influence of teacher perceptions was also addressed as a potential factor in student learning. Prior to receiving instruction, the majority of students possessed an alternative or fragmented understanding of the Earth-Moon-Sun relationship and lunar concepts. Results from the measure of students’ knowledge of the Earth-Moon-Sun relationship on the three component questions (Earth-Moon-Sun relationship, gravity, patterns of orbit) indicated a moderate degree of conceptual change. Results from the measure of students’ understanding of lunar concepts showed a greater gain in conceptual understanding than was shown on the Earth-Moon-Sun relationship measure. Consistent with the findings of previous research by Molander et al. (2007, 2010), ambiguity in the scientific meaning of the classroom dialogue or misconceptions arising from the use or omission of a particular term in sign language were found to have an ii effect on students’ learning. Analysis of the scientific classroom talk that occurred during instruction showed that the teacher maintained a high level of control over the discourse. Data from pre- and post-instruction interviews with the teacher provided insight into her perceptions of her students’ abilities. The teacher expressed her perception of her students as largely dependent learners, which seemed to have an effect on how she delivered instruction. The teacher’s perception of her students’ ability to engage in a productive dialogue may have resulted in a greater level of teacher control over classroom talk. iii Dedicated to my teachers, students, friends, and family of choice in the Deaf World. Your imprint is forever on my heart and in my work. iv ACKNOWLEDGEMENTS I would like to thank those who participated in this study. The administrators, teacher, and students who allowed me to conduct this research contributed not only to my scholarship, but also to the body of research that will foreground the need for continued attention to the endeavor of science learning for students who are deaf or hard of hearing. I would also like to thank those who have supported my scholarship throughout my graduate studies. Dr. Mollie Blackburn, thank you for your guidance throughout my candidacy as well as my dissertation writing; your incisive feedback and calming presence are deeply appreciated. Dr. Peter Paul, thank you for recognizing the scholar in me when we met so many years ago, and for encouraging me to pursue the NLCSD fellowship opportunity. I quite literally would not be here without you, sonrisa. Dr. Tiffany Wild, thank you for the direction and inspiration you have provided in both my research and in my pursuit of scholarship. Your mentorship has been an invaluable part of this process, and I am incredibly grateful to you for guiding me to an area of research that has such important implications for the field of deaf education. I would like to thank the National Leadership Consortium in Sensory Disabilities for supporting my studies and for creating the opportunity to develop skills in leadership v and scholarship. Thank you to Glenda Hill, Dr. Kathleen Huebner, Dr. Brooke Kruemmling, and all of the leadership, PAC, and consortium for your unwavering support and belief in the Fellows and in the purpose of NLCSD. To my family – Mom and Dad, everything I am is a result of your love and example. Thank you for going along on yet another wild ride with me. Grandma and Aunt Sharon, your prayers were a consistent source of reassurance that I had a team of angels behind me. Karen and Kelly, you were, and always have been, two of my loudest cheerleaders, and your support helped me get over the finish line of this marathon. Finally, thank you to my partner, Christine. You believed in me, even when I struggled to believe in myself. I did it!!! vi VITA 1999………………………Bachelor of Science in Deaf Education, Bowling Green State University 2004…...…………………Master of Science in Deaf Education, Idaho State University 2000-2010……………......Elementary School Teacher, St. Rita School for the Deaf, Idaho School for the Deaf and the Blind, Ohio School for the Deaf 2010-2014………………...NLCSD Fellow, The Ohio State University PUBLICATIONS Bennett, J. G., Gardner, R., Leighner, R., Clancy, S., & Garner, J. (2014). Explicitly teaching English through-the-air to students who are deaf and hard of hearing. American Annals of the Deaf, 159, 45-58. Baker, A. R., Binici, S., Clancy, S., Dynia, J., Hans, A., Henry, B. A., Hill, H. B., Kovach, K. M., Schmitt, M. B., & Way, D. P. (2013). Afterword. Theory Into Practice, 52, 102-105. FIELD OF STUDY Major Field: Education: Teaching & Learning Education of the Deaf and Hard of Hearing Science Education Qualitative Research Methods vii TABLE OF CONTENTS Page Abstract……………………………………………………………………………………ii Dedication………………………………………………………………………………...iv Acknowledgements………………………………………………………………..............v Vita………………………………………………………………………………………vii List of Tables…………………………………………………………………………….xii List of Figures…………………………………………………………………………...xiii List of Episodes…………………………………………………………………………xiv Chapters 1. Introduction………………………………………………………………………..1 Purpose of the Study………………………………………………………………4 Rationale for the Study……………………………………………………………4 Research Questions………………………………………………………………10 Significance of the Study………………………………………………………...10 Definition of Terms………………………………………………………………13 Organization of the Study………………………………………………………..15 2. Review of the Literature…………………………………………………………16 Conceptual Change Theory………………………………………………………16 The epistemological view of conceptual change………………………...17 The ontological view of conceptual change……………………………...21 The motivational/contextual view of conceptual change………………...23 Classroom Talk…………………………………………………………………..26 Mediated learning………………………………………………………..27 Critical moments in classroom talk………………………………………28 Science classroom talk…………………………………………………...29 Classroom talk and language development………………………………31 A framework for the analysis of classroom talk…………………………32 Teacher Perceptions……………………………………………………………...34 Teacher questioning and feedback……………………………………….35 Teacher controlled classroom talk that restricts student learning…………………………………………………………..37 Teacher controlled classroom talk that supports student learning…………………………………………………………..38 viii Teacher perceptions and classroom talk…………………………………39 Discrepancies in student and teacher perceptions………………………..41 Lunar Concepts – Curriculum and Research………….…………………………42 Lunar concepts curriculum framework…………………………………..42 Lunar concepts and misconceptions research……………………………44 Science Learning in Special Education…………………………………………..49 Science education and students with visual impairments………………..51 Deaf Education and Science Instruction…………………………………………52 Academic achievement…………………………………………………..53 Language and prior knowledge…………………………………………..55 Types of sign language…………………………………………..55 Classroom placement…………………………………………………….58 Sign language in the science classroom………………………………….59 Construction of meaning in science classroom sign language…………...60 Incongruity of meaning between sign language and spoken language…..62 Learning styles of students who are DHH……………………………….63 Instructional modifications………………………………………………65 Prior knowledge and the development of mental models………………..69 Deaf students’ misconceptions about the Earth-Sun-Moon relationship...70 Chapter Summary………………………………………………………………..72 3. Methodology……………………………………………………………………..73 Design of the Study………………………………………………………………73 Participants and Context…………………………………………………………73 Students………………………………………………………………….74 Teacher…………………………………………………………………..76 Participant observer……………………………………………………...76 Setting……………………………………………………………………………77 Data Collection…………………………………………………………………..78 Student interviews……………………………………………………….78 Teacher interviews……………………………………………………….81 Classroom observation…………………………………………………...81 Data Analysis…………………………………………………………………….89 Constant comparative analysis of conceptual change……………………89 Development of a coding framework……………………………………90 Scientific understanding: Earth-Moon-Sun concepts……………92 Scientific understanding: Lunar concepts………………………..93 Alternative understandings (misconceptions)……………………95 Constant comparative analysis and coding………………………………96 Analysis of Classroom Talk……………………………………………………...97 Trustworthiness…………………………………………………………………..97 Translation and transcription………………………………………….....99 Coding conceptual change data……………………………………….....99