Matching Items (15)
Description
Conceptual change has been a large part of science education research for several decades due to the fact that it allows teachers to think about what students' preconceptions are and how to change these to the correct scientific conceptions. To have students change their preconceptions teachers need to allow students to confront what they think they know in the presence of the phenomena. Students then collect and analyze evidence pertaining to the phenomena. The goal in the end is for students to reorganize their concepts and change or correct their preconceptions, so that they hold more accurate scientific conceptions. The purpose of this study was to investigate how students' conceptions of the Earth's surface, specifically weathering and erosion, change using the conceptual change framework to guide the instructional decisions. The subjects of the study were a class of 25 seventh grade students. This class received a three-week unit on weathering and erosion that was structured using the conceptual change framework set by Posner, Strike, Hewson, and Gertzog (1982). This framework starts by looking at students' misconceptions, then uses scientific data that students collect to confront their misconceptions. The changes in students' conceptions were measured by a pre concept sketch and post concept sketch. The results of this study showed that the conceptual change framework can modify students' preconceptions of weathering and erosion to correct scientific conceptions. There was statistical significant difference between students' pre concept sketches and post concept sketches scores. After examining the concept sketches, differences were found in how students' concepts had changed from pre to post concept sketch. Further research needs to be done with conceptual change and the geosciences to see if conceptual change is an effective method to use to teach students about the geosciences.
ContributorsTillman, Ashley (Author) / Luft, Julie (Thesis advisor) / Middleton, James (Committee member) / Semken, Steven (Committee member) / Arizona State University (Publisher)
Created2011
Description
ABSTRACT Early career science teachers are often assigned to classrooms with high numbers of English language learners (ELL students). As these teachers learn to become effective practitioners, the circumstances surrounding them merit a thorough examination. This study examines the longitudinal changes in Pedagogical Content Knowledge (PCK) and practices of six early career science teachers who taught in urban schools. The teachers participated in the Alternative Support for Induction Science Teachers (ASIST) program during their initial two years of teaching. Our research team followed the participants over a five-year period. This study focuses on data from Years 1, 3, and 5. The data collected included classroom observations and interviews. In addition, classroom artifacts were collected periodically for the purpose of triangulation. The analysis of the data revealed that with the support of the ASIST program, the teachers implemented inquiry lessons and utilized instructional materials that promoted academic language skills and science competencies among their ELL students. Conversely, standardized testing, teaching assignment, and school culture played a role in constraining the implementation of inquiry-based practices. The results of this study call for collaborative efforts among university science educators and school administrators to provide professional development opportunities and support for the implementation of inquiry and language practices among early career science teachers of ELL students.
ContributorsOrtega, Irasema (Author) / Luft, Julie A (Thesis advisor) / Artiles, Alfredo (Committee member) / Baker, Dale R. (Committee member) / Arizona State University (Publisher)
Created2011
Description
The nature of science (NOS) is included in the National Science Education Standards and is described as a critical component in the development of scientifically literate students. Despite the significance of NOS in science education reform, research shows that many students continue to possess naïve views of NOS. Explicit and reflective discussion as an instructional approach is relatively new in the field of research in NOS. When compared to other approaches, explicit instruction has been identified as more effective in promoting informed views of NOS, but gaps in student understanding still exist. The purpose of this study was to deepen the understanding of student learning of NOS through the investigation of two variations of explicit instruction. The subjects of the study were two seventh grade classes taught by the same classroom teacher. One class received explicit instruction of NOS within a plate tectonics unit and the second class received explicit instruction of NOS within a plate tectonics unit plus supporting activities focused on specific aspects of NOS. The instruction time for both classes was equalized and took place over a three week time period. The intention of this study was to see if the additional NOS activities helped students build a deeper understanding of NOS, or if a deep understanding could be formed solely through explicit and reflective discussion within content instruction. The results of the study showed that both classes progressed in their understanding of NOS. When the results of the two groups were compared, the group with the additional activities showed statistically significant gains on two of the four aspects of NOS assessed. These results suggest that the activities may have been valuable in promoting informed views, but more research is needed in this area.
ContributorsMelville, Melissa (Author) / Luft, Julie (Thesis advisor) / Baker, Dale (Committee member) / Brem, Sarah (Committee member) / Arizona State University (Publisher)
Created2011
Description
Few would argue that teacher effectiveness is a key lever in education reform and improving the overall quality of public education, especially in poor and working class communities. To that end, the importance of supporting and developing beginning teachers is of utmost importance in education, thus requiring deep understandings of the process of learning to teach. Yet, most conceptions of teacher learning struggle to capture the social, cultural, and historical context of teacher learning, particularly in understanding how learning and the production of knowledge is situated, active, and complex. One example of this limitation comes from the field of research on pedagogical content knowledge (PCK) and its importance in developing effective beginning teachers. This study characterizes beginning teachers' production of PCK within a cultural historical activity theory (CHAT) framework. This study finds that the teachers produce PCK mostly based on their own individual experiences and reflections, receiving little assistance from the structures intended to provide them with support. The self-produced PCK is uneven, underdeveloped, and relies on teachers to use their sense of agency and identity to navigate dissonant and unbalanced activity systems. Over time, PCK production remains uneven and underdeveloped, while the individual teachers find it more and more difficult to bring balance to their activity systems, ultimately resulting in their exit from the activity system of teaching in their district and school.
ContributorsDiaz, Victor H (Author) / Fischman, Gustavo E. (Thesis advisor) / Luft, Julie (Committee member) / Artiles, Alfredo (Committee member) / Arizona State University (Publisher)
Created2012
A bilingual, bicultural interpreter and researcher navigates blurry boundaries and intersectionality
Description
A researcher reflects using a close reading of interview transcripts and description to share what happened while participating in multiple roles in a larger ethnographic study of the acculturation process of deaf students in kindergarten classrooms in three countries. The course of this paper will focus on three instances that took place in Japan and America. The analysis of these examples will bring to light the concept of taking on multiple roles, including graduate research assistant, interpreter, cultural mediator, and sociolinguistic consultant within a research project serving to uncover challenging personal and professional dilemmas and crossing boundaries; the dual roles, interpreter and researcher being the primary focus. This analysis results in a brief look at a thought provoking, yet evolving task of the researcher/interpreter. Maintaining multiple roles in the study the researcher is able to potentially identify and contribute "hidden" knowledge that may have been overlooked by other members of the research team. Balancing these different roles become key implications when interpreting practice, ethical boundaries, and participant research at times the lines of separation are blurred.
ContributorsHensley, Jennifer Scarboro (Author) / Tobin, Joseph (Thesis advisor) / Artiles, Alfredo (Committee member) / Horejes, Thomas (Committee member) / Arizona State University (Publisher)
Created2011
Description
This multilevel, institutional case study used ethnographic methods to explore the intersections of local language policies and emergent bilingual students’ identities in dual language and structured English immersion (SEI) classrooms at one urban elementary school. Using a sociocultural policy approach as means to explore the ways that educational language policies are appropriated and practiced in schools and classrooms and an intersectional literacy identity framework, I engaged in a multilevel qualitative analysis of one school, two fifth-grade classrooms, and four focal emergent bilingual students. At the school and classroom levels, I sought to understand the ways educators practiced and enacted language policies as well as how they conceptualized (bi)literacy for emergent bilingual students. At the student level, I engaged in identity-text writing sessions designed around student interests yet aligned with the opinion/argumentation writing style the students were working on in class at the time of data collection. Additionally, I conducted one-on-one interviews with the participants at each level of analysis (i.e. school-level, classroom-level, and student-level). The primary data analysis sources included participant interviews, classroom observations, and student identity-text artifacts.
Findings highlight the dynamic in-school and classroom-level realities of emergent bilingual students in an Arizona educational-language policy context. Specifically, at the school level, there was an ongoing tension between compliance and resistance to state-mandated policies for emergent bilingual students. At the school and classroom levels, there were distinct differences in the ways students across the two classrooms were positioned within the larger school environment as well as variation surrounding how language and culture were positioned as a resource in each classroom context. The role of teachers as language policymakers is also explored through the findings. Analysis of student texts revealed the centrality of intersectional student identities throughout the writing processes. The discussion and conclusions more broadly address implications for educational practice, policy, and future research directions.
Findings highlight the dynamic in-school and classroom-level realities of emergent bilingual students in an Arizona educational-language policy context. Specifically, at the school level, there was an ongoing tension between compliance and resistance to state-mandated policies for emergent bilingual students. At the school and classroom levels, there were distinct differences in the ways students across the two classrooms were positioned within the larger school environment as well as variation surrounding how language and culture were positioned as a resource in each classroom context. The role of teachers as language policymakers is also explored through the findings. Analysis of student texts revealed the centrality of intersectional student identities throughout the writing processes. The discussion and conclusions more broadly address implications for educational practice, policy, and future research directions.
ContributorsBaca, Evelyn Concepción (Author) / Jimenez-Silva, Margarita (Thesis advisor) / Artiles, Alfredo (Committee member) / Beardsley, Audrey (Committee member) / Casanova, Saskias (Committee member) / Arizona State University (Publisher)
Created2018
Description
This teacher research study examined the effects of utilizing an intervention of Science Writing Heuristics (SWH) as a tool to increase learning during laboratory activities. Five of my eighth grade general science classes participated in this study. Two classes utilized SWH during their laboratory activities (the treatment group) and three classes performed and wrote up their labs in the more traditional, teacher-directed approach (the control group). The assessment scores of the students in the treatment group were compared to the assessment scores of the students in the control group. The post-assessments were analyzed utilizing a t-test. I was teacher in this study and the teacher of all five classes. Data from 41 students were analyzed in this study. A pre-assessment, six laboratory activities, instruction, and a post-assessment occurred within three weeks. The assessments were generated by myself and I performed a t-test using a two-sample analysis, assuming unequal variances (n=16 for treatment group, n=25 for control group) to compare the post-assessments from each group. Results indicated that there was no significant difference between the post-assessment scores of the treatment group with the post-assessment scores of control group (p=0.25). However, the t-test results revealed that when the pre- and post-assessments were compared, there was a significant difference (p=<0.05 for treatment group, p=<0.05 for control group). Each group showed considerable cognitive improvement between pre-assessment (mean scores: 52%-treatment group and 53%-control group) and the post-assessment (mean scores: 72%-treatment group and 80%-control group). This suggests that the presentation of the curriculum lacked a clear distinction between the treatment group and the control group yet benefited most students. Due to circumstances described in the limitations, further research is warranted.
ContributorsDrobitsky, Tamara (Author) / Luft, Julie (Thesis advisor) / Marsh, Josephine (Committee member) / Baker, Dale (Committee member) / Lyon, Edward (Committee member) / Arizona State University (Publisher)
Created2015
Description
Information concerning sexual minorities is conspicuously absent from secondary education curriculums. Student attitudes toward sexual diversity are impacted, and those entering higher educational environments are at a disadvantage when faced with diverse university populations. This study attempted to close the information gap among first year college students and to improve attitudes by teaching about sexual minorities, especially gays and lesbians. In addition to their standard coursework, 41 student participants (31 in the intervention group, and 10 in the control group) who were enrolled in required introductory college courses received six short lessons on sexual diversity. Mixed methods data collection and analysis included a pre and post intervention survey, the Riddle Homophobia Scale (1985), and qualitative electronic discussion boards throughout the intervention. Surveys revealed a significant decrease in negative attitudes but no increase in more affirming attitudes. Qualitative data showed somewhat inconsistent results with quantitative surveys, but allowed deeper analysis of the familial, social, religious and societal influences on student attitudes toward lesbian, gay, bisexual and questioning (LGBQ) people. Discussion includes possible explanations for the findings, suggestions for future research, and suggests refinements of the Riddle Homophobia Scale.
ContributorsSpalding, Mark Donald (Author) / Rotheram-Fuller, Erin (Thesis advisor) / Adelman, Madelaine (Committee member) / Artiles, Alfredo (Committee member) / Arizona State University (Publisher)
Created2016
Description
According to UNESCO's 2010 survey results of 58 member countries, 34 of the countries had less than 1 percent of children enrolled in special education programs. Ten of these countries provided special education provision for less than .01 percent of children. However, the demand to educate students with disabilities in inclusive educational settings continues to grow. Thus, there are many national initiatives aimed at finding ways of creating forms of inclusive educational settings that can respond to children with special needs. In this study, the purpose was to better understand the processes of local adaptation and modification of UNESCO's inclusive education policies, the possible resistances to global forces in inclusive education in Turkey, and the consequences of the implications of those policies in Ankara, Turkey from local educators' views. With that goal in mind, recently adopted Turkish inclusive educational policies implemented after the Salamanca Statement in 1994 were reviewed on a selective basis. The discussion of the policy and document analysis section helped to make connections between the global inclusive education policy changes and local practices in the Turkish education system. In the second part of the study, semi-structured interviews were conducted with local educators in Ankara (teachers, administrators, and academic advisors) and policy makers from the Ministry of National Education. An analysis of the interview data highlighted the various complexities, tensions, and inadequacies in the conceptualization of inclusive education in Turkish public primary schools that study participants have observed and experienced. In light of the findings, possible reasons behind the gap between theory and practice and the discrepancies between Western and Turkish interpretations of inclusive education in Turkey are discussed. In the current inclusive education system in Turkey, the challenge of modifying deeply held attitudes at both personal and institutional levels, providing clearly constructed inclusive education policies and approaches, offering appropriate training to key stakeholders, and making adequate resources available appear to be the primary issues for moving forward with full inclusion initiatives.
ContributorsCiyer, Aysegul (Author) / Swadener, Beth B (Thesis advisor) / Artiles, Alfredo (Committee member) / Tobin, Joseph (Committee member) / Mathur, Sarup (Committee member) / Arizona State University (Publisher)
Created2010
Description
ABSTRACT Research has shown that students from elementary school to college have major misconceptions about the nature of science. While an appropriate understanding of the nature of science has been an objective of science education for a century, researchers using a variety of instruments, continue to document students' inadequate conceptions of what science is and how it operates as an enterprise. Current research involves methods to improve student understanding of the nature of science. Students often misunderstand the creative, subjective, empirical, and tentative nature of science. They do not realize the relationship between laws and theories, nor do they understand that science does not follow a prescribed method. Many do not appreciate the influence culture, society, and politics; nor do they have an accurate understanding of the types of questions addressed by science. This study looks at student understanding of key nature of science (NOS) concepts in order to examine the impact of implementing activities intended to help students better understand the process of science and to see if discussion of key NOS concepts following those activities will result in greater gains in NOS understanding. One class received an "activities only" treatment, while the other participated in the same activities followed by explicit discussion of key NOS themes relating to the activity. The interventions were implemented for one school year in two high school anatomy and physiology courses composed of juniors and seniors. Student views of the nature of science were measured using the Views of the Nature of Science - Form C (VNOS-C). Students in both classes demonstrated significant gains in NOS understanding. However, contrary to current research, the addition of explicit discussion did not result in significantly greater gains in NOS understanding. This suggests that perhaps students in higher-level science classes can draw the correlations between NOS related activities and important aspects of "real" science. Or perhaps that a curriculum with a varied approach my expose students to more aspects of science thus improving their NOS understanding.
ContributorsTalbot, Amanda L (Author) / Luft, Julie (Thesis advisor) / Baker, Dale (Committee member) / Brem, Sarah (Committee member) / Arizona State University (Publisher)
Created2010