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- All Subjects: General Education
- Creators: Danzig, Arnold
- Creators: Arrowsmith, Ramon
- Creators: Mccarty, Teresa
Description
An array of north-striking, left-stepping, active normal faults is situated along the southwestern margin of the Gulf of California. This normal fault system is the marginal fault system of the oblique-divergent plate boundary within the Gulf of California. To better understand the role of upper-crustal processes during development of an obliquely rifted plate margin, gravity surveys were conducted across the normal-fault-bounded basins within the gulf-margin array and, along with optically stimulated luminescence dating of offset surfaces, fault-slip rates were estimated and fault patterns across basins were assessed, providing insight into sedimentary basin evolution. Additionally, detailed geologic and geomorphic maps were constructed along two faults within the system, leading to a more complete understanding of the role of individual normal faults within a larger array. These faults slip at a low rate (0.1-1 mm/yr) and have relatively shallow hanging wall basins (~500-3000 m). Overall, the gulf-margin faults accommodate protracted, distributed deformation at a low rate and provide a minor contribution to overall rifting. Integrating figures with text can lead to greater science learning than when either medium is presented alone. Textbooks, composed of text and graphics, are a primary source of content in most geology classes. It is essential to understand how students approach learning from text and figures in textbook-style learning materials and how the arrangement of the text and figures influences their learning approach. Introductory geology students were eye tracked while learning from textbook-style materials composed of text and graphics. Eye fixation data showed that students spent less time examining the figure than the text, but the students who more frequently examined the figure tended to improve more from the pretest to the posttest. In general, students tended to examine the figure at natural breaks in the reading. Textbook-style materials should, therefore, be formatted to include a number of natural breaks so that learners can pause to inspect the figure without the risk of losing their place in the reading and to provide a chance to process the material in small chunks. Multimedia instructional materials should be designed to support the cognitive processes of the learner.
ContributorsBusch, Melanie M. D (Author) / Arrowsmith, Ramon (Thesis advisor) / Reynolds, Stephen (Thesis advisor) / Chi, Michelene (Committee member) / Semken, Steven (Committee member) / Tyburczy, James (Committee member) / Arizona State University (Publisher)
Created2011
Description
In this study, I investigate the digital literacy practices of adult immigrants, and their relationship with transnational processes and practices. Specifically, I focus on their conditions of access to information and communication technologies (ICTs) in their life trajectories, their conditions of learning in a community center, and their appropriation of digital literacy practices for transnational purposes. By studying the culturally situated nature of digital literacies of adult learners with transnational affiliations, I build on recent empirical work in the fields of New Literacy Studies, sociocultural approaches to learning, and transnational studies. In this qualitative study, I utilized ethnographic techniques for data collection, including participant observation, interviewing, and collection of material and electronic artifacts. I drew from case study approaches to analyze and present the experiences of five adult first-generation immigrant participants. I also negotiated multiple positionalities during the two phases of the study: as a participant observer and instructor's aide during the Basic Computer Skills course participants attended, and as a researcher-practitioner in the Web Design course that followed. From these multiple vantage points, my analysis demonstrates that participants' access to ICTs is shaped by structural factors, family dynamics, and individuals' constructions of the value of digital literacies. These factors influence participants' conditions of access to material resources, such as computer equipment, and access to mentoring opportunities with members of their social networks. In addition, my analysis of the instructional practices in the classroom shows that instructors used multiple modalities, multiple languages and specialized discourses to scaffold participants' understandings of digital spaces and interfaces. Lastly, in my analysis of participants' repertoires of digital literacy practices, I found that their engagement in technology use for purposes of communication, learning, political participation and online publishing supported their maintenance of transnational affiliations. Conversely, participants' transnational ties and resources supported their appropriation of digital literacies in everyday practice. This study concludes with a discussion on the relationship among learning, digital literacies and transnationalism, and the contributions of critical and ethnographic perspectives to the study of programs that can bridge digital inequality for minority groups.
ContributorsNoguerón, Silvia Cecilia (Author) / Warriner, Doris S (Thesis advisor) / Faltis, Christian J (Committee member) / Mccarty, Teresa (Committee member) / Wiley, Terrence (Committee member) / Arizona State University (Publisher)
Created2011
Description
Geoscience educators commonly teach geology by projecting a photograph in front of the class. Geologic photographs often contain animals, people, and inanimate objects that help convey the scale of features in the photograph. Although scale items seem innocuous to instructors and other experts, the presence of such items is distracting and has a profound effect on student learning behavior. To evaluate how students visually interact with distracting scale items in photographs and to determine if cueing or signaling is an effective means to direct students to pertinent information, students were eye tracked while looking at geologically-rich photographs. Eye-tracking data revealed that learners primarily looked at the center of an image, focused on faces of both humans and animals if they were present, and repeatedly returned to looking at the scale item (distractor) for the duration an image was displayed. The presence of a distractor caused learners to look at less of an image than when a distractor was not present. Learners who received signaling tended to look at the distractor less, look at the geology more, and surveyed more of the photograph than learners who did not receive signaling. The San Antonio area in the southern part of the Baja California Peninsula is host to hydrothermal gold deposits. A field study, including drill-core analysis and detailed geologic mapping, was conducted to determine the types of mineralization present, the types of structures present, and the relationship between the two. This investigation revealed that two phases of mineralization have occurred in the area; the first is hydrothermal deposition of gold associated with sulfide deposits and the second is oxidation of sulfides to hematite, goethite, and jarosite. Mineralization varies as a function of depth, whereas sulfides occurring at depth, while minerals indicative of oxidation are limited to shallow depths. A structural analysis revealed that the oldest structures in the study area include low-grade to medium-grade metamorphic foliation and ductile mylonitic shear zones overprinted by brittle-ductile mylonitic fabrics, which were later overprinted by brittle deformation. Both primary and secondary mineralization in the area is restricted to the later brittle features. Alteration-bearing structures have an average NNW strike consistent with northeast-southwest-directed extension, whereas unaltered structures have an average NNE strike consistent with more recent northwest-southeast-directed extension.
ContributorsCoyan, Joshua (Author) / Reynolds, Stephen (Thesis advisor) / Arrowsmith, Ramon (Committee member) / Chi, Michelene (Committee member) / Piburn, Michael (Committee member) / Semken, Steven (Committee member) / Arizona State University (Publisher)
Created2011
Description
Lead is a neurotoxin that has been shown to have a long and lasting impact on the brains, bodies, and behaviors of those who are poisoned. It also has a greater presence in communities with high levels of poverty and minority populations. Compounded over time, the effects of lead poisoning, even at low levels of exposure, impact a child's readiness and ability to learn. To investigate the relationship between the risk of lead poisoning, school level academic achievement, and community demographics, three sets of data were combined. The Lead Poisoning Risk Index (LPRI), used to quantify the risk in each census tract of being poisoned by lead, standardized state assessment data for third grade reading and eighth grade math, and census 2000 demographic data were combined to provide information for all Arizona schools and census tracts. When achievement was analyzed at the school level using descriptive, bivariate correlation, and multivariate regression analyses, lead's impact practically disappeared, exposing the powerful effect of poverty and race on achievement. At a school in Arizona, the higher the percentage of students who are poor or Hispanic, African American or Native American, these analyses' predictive models suggest there will be a greater percentage of students who fail the third grade AIMS reading and eighth grade AIMS math tests. If better achievement results are to be realized, work must be done to mitigate the effects of poverty on the lives of students. In order to improve schools, there needs to be an accounting for the context within which schools operate and a focus on improving the neighborhoods and the quality of life for the families of students.
ContributorsGehrman, Matthew Paul (Author) / Berliner, David C. (Thesis advisor) / Garcia, David (Committee member) / Danzig, Arnold (Committee member) / Arizona State University (Publisher)
Created2011
Description
This study was designed to capture the conversations and practices of seven educators who navigate teaching and learning decisions in their Title 1 elementary school. This case study was conducted to answer the research question, "What are the behaviors and practices of a newly formed collaborative team of educators working within a professional learning community (PLC)?" In order to understand how this collaborative team worked together, data was collected through a survey, interviews, focus group discussion and questionnaire, observations of collaborative team meetings and artifacts generated from the team's work. The findings revealed that (1) participants spent the majority of their collaborative team time focusing on how to best prepare students for district and state standardized assessments; (2) teachers described themselves as learners who look to their colleagues to enhance their knowledge and skills; (3) members of PLCs need dedicated collaborative time to ensure all students and adults in the organization learn at high levels; (4) discussing and using student learning data can be difficult; (5) educators gravitate to colleagues who have similar philosophies and beliefs and (6) PLCs need supportive district, school and teacher leadership to accomplish their goals. This research study provides validation that the PLC process is a complex process of professional development designed to support school reform in an era of increased school accountability. The recommendations for school leaders are to create supportive leadership structures that allow all students opportunities to learn, build trusting environments, and provide clarity and focus of the vision for all stakeholders. District leadership needs to establish a priority for PLC work by embedding the processes in the vision, mission and goals of the district, examine policies to ensure they support the concepts of PLCs, provide access to resources and create a forum for critical conversations about teaching and learning. Policy makers need to ask the right questions so that they can design appropriate accountability systems that encourage collaboration.
ContributorsFourlis, Andi (Author) / Danzig, Arnold (Thesis advisor) / Davey, Lynn (Committee member) / Kriekard, John (Committee member) / Arizona State University (Publisher)
Created2011
Description
This study examined the quality of professional life at a Title I school that has achieved the Arizona Department of Education's highest accountability rating of Excelling for eight consecutive years. By examining the factors that influence the school environment including teachers' attitudes and the connections within the teacher community at this school, a description emerged of the factors that influenced the quality of professional lives of teachers. This descriptive study sought to describe, "What is the quality of professional life for teachers at a Title I elementary school with a history of high levels of student achievement?" The research was conducted at Seneca Elementary school (a pseudonym) in the Seneca School District (a pseudonym). By examining the quality of professional life for teachers in a highly ranked Title I school, a better understanding of the quality of professional life may lead to recommendations for other schools with high levels of poverty on how to support teachers who work in high poverty schools. Within a theoretical framework of motivation-hygiene theory and socio cultural theory, the study identified principal leadership as a primary supporting factor of quality of professional life. The study also identified lack of input and lack of teacher control over curriculum and instruction as barriers to quality of professional life. Teachers described principal leadership, environment, social factors and teacher identity as contributors to enhancing the quality of professional life. Trust and focus emerged as additional factors that improved the workplace for teachers.
ContributorsThomas, Jeffrey J (Author) / Danzig, Arnold (Thesis advisor) / Fischman, Gustavo (Committee member) / Boyle, Charlotte (Committee member) / Arizona State University (Publisher)
Created2011
Description
Children with dis/abilities the world over are widely required to sacrifice their human rights to education, equity, community, and inclusion. Fewer than 10% of children with dis/abilities in developing countries attend school. Namibia, Africa, where this study took place, is no different. Despite Namibia's adoption of international covenants and educational policy initiatives, children with dis/abilities continue to be overwhelmingly excluded from school. The body of literature on exclusion in sub-Saharan Africa is laden with the voices of teachers, principals, government education officials, development organizations, and scholars. This study attempted to foreground the voices of rural Namibian families of children with dis/abilities as they described their lived experiences via phenomenological interviews. Their stories uncovered deeply held assumptions, or cultural models, about dis/abilities. Furthermore, the study examined how policy was appropriated by local actors as mediated by their shared cultural models. Ideas that had been so deeply internalized about dis/abilities emerged from the data that served to illustrate how othering, familial obligation, child protection, supernatural forces, and notions of dis/ability intersect to continue to deny children with dis/abilities full access to educational opportunities. Additionally, the study describes how these cultural models influenced cognition and actions of parents as they appropriated local educational policy vis-à-vis creation and implementation; thereby, leaving authorized education policy for children with dis/abilities essentially obsolete. The top down ways of researching by international organizations and local agencies plus the authorized policy implementation continued to contribute to the perpetuation of exclusion. This study uncovered a need to apply bottom up methods of understanding what parents and children with dis/abilities desire and find reasonable for education, as well as understanding the power parents wield in local policy appropriation.
ContributorsBartlett, Margaret A (Author) / Swadener, Beth Blue (Thesis advisor) / Artiles, Alfredo (Committee member) / Mccarty, Teresa (Committee member) / Arizona State University (Publisher)
Created2010