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Abstract As we move forward in education reform in the globalized 21st century, the United States must visit new ways to teach science in high school classrooms. The goal of this investigation is to analyze the current research literature for the best and most promising teaching strategies and techniques in secondary education biology classrooms that promote academic excellence for all students. Looking at policy and school reform literature in science education to establish the context of the current system, the paper will not focus on the political as or systematic changes needed to ground an overall successful system. However, because of their inherent effect on the education system, the political aspects of education reform will be briefly addressed. The primary focus, by addressing the emphasis on standardization, inflexibility of instruction and lack of creativity specifically in high school biology classrooms, seeks to clarify small changes that can influence students' academic outcomes. The United States is performing on such a poor level in science and math proficiency that it cannot match students abroad and this is seen through test scores and the production of competent graduates. This investigation serves to organize literature from education researchers and showcase best and promising teaching and learning practices that catalyze academic excellence for all students in our pluralistic, democratic and complex schooling and societal contexts.
ContributorsHildebrandt, Kevin Andrew (Author) / Ovando, Carlos (Thesis director) / Schugurensky, Daniel, 1958- (Committee member) / Fischman, Gustavo (Committee member) / Barrett, The Honors College (Contributor) / School of Life Sciences (Contributor) / School of International Letters and Cultures (Contributor)
Created2013-05
Description
As green buildings become more popular, the challenge of structural engineer is to move beyond simply green to develop sustainable, and high-performing buildings that are more than just environmentally friendly. For decades, Portland cement-based products have been known as the most commonly used construction materials in the world, and as a result, cement production is a significant source of global carbon dioxide (CO2) emissions, and environmental impacts at all stages of the process. In recent years, the increasing cost of energy and resource supplies, and concerns related to greenhouse gas emissions and environmental impacts have ignited more interests in utilizing waste and by-product materials as the primary ingredient to replace ordinary Portland cement in concrete systems. The environmental benefits of cement replacement are enormous, including the diversion of non-recycled waste from landfills for useful applications, the reduction in non-renewable energy consumption for cement production, and the corresponding emission of greenhouse gases. In the vast available body of literature, concretes consisting activated fly ash or slag as the binder have been shown to have high compressive strengths, and resistance to fire and chemical attack. This research focuses to utilize fly ash, by-product of coal fired power plant along with different alkaline solutions to form a final product with comparable properties to or superior than those of ordinary Portland cement concrete. Fly ash mortars using different concentration of sodium hydroxide and waterglass were dry and moist cured at different temperatures prior subjecting to uniaxial compressive loading condition. Since moist curing continuously supplies water for the hydration process of activated fly ash mortars while preventing thermal shrinkage and cracking, the samples were more durable and demonstrated a noticeably higher compressive strength. The influence of the concentration of the activating agent (4, or 8 M sodium hydroxide solution), and activator-to-binder ratio of 0.40 on the compressive strengths of concretes containing Class F fly ash as the sole binder is analyzed. Furthermore, liquid sodium silicate (waterglass) with silica modulus of 1.0 and 2.0 along with activator-to-binder ratio of 0.04 and 0.07 was also studied to understand its performance in contributing to the strength development of the activated fly ash concrete. Statistical analysis of the compressive strength results show that the available alkali concentration has a larger influence on the compressive strengths of activated concretes made using fly ash than the influence of curing parameters (elevated temperatures, condition, and duration).
ContributorsBanh, Kingsten Chi (Author) / Neithalath, Narayanan (Thesis director) / Rajan, Subramaniam (Committee member) / Mobasher, Barzin (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2013-05
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
Participatory Budgeting (PB) can create changes within individuals and between them and their community. PB processes allow people to determine how to spend a portion of a particular budget (in the case of School PB, a portion of the school budget). These processes help address the underrepresentation of youth in the realm of civics.
I spent time with the steering committee and teacher coordinator of school PB in Carson Junior High to explore the impact of school PB on students’ knowledge, skills, attitudes and practices in relation to civic engagement. In the study I used quantitative and qualitative components. The participants were unique in that they all had prior experience in civic engagement programs in Carson Junior High that were organized by the teacher coordinator of school PB.
The main findings suggest that the participants reported a significant amount of learning in civic knowledge. In comparison, their overall perceived growth in attitudes, practices and skills were much lower. School PB helped the participants in the steering committee to grow in different ways than their other civic engagement programs by providing them with knowledge about budgets, their school’s mechanisms and other students within their school. They also became more familiar with the democratic process of voting and more comfortable with public speaking and presenting.
Recommendations for future research on this process include compiling quantitative and qualitative data from a larger sample consisting of students who had prior civic engagement experience and students who didn’t, and students with different ethnicities from different grades. Another recommendation for future research is to conduct a longitudinal study following school PB participants to high school and beyond to explore long-term impacts.
ContributorsKinzle, Lauren (Author) / Schugurensky, Daniel, 1958- (Thesis director) / Fischman, Gustavo (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor)
Created2019-05
Description
Concrete stands at the forefront of the construction industry as one of the most useful building materials. Economic and efficient improvements in concrete strengthening and manufacturing are widely sought to continuously improve the performance of the material. Fiber reinforcement is a significant technique in strengthening precast concrete, but manufacturing limitations are common which has led to reliance on steel reinforcement. Two-dimensional textile reinforcement has emerged as a strong and efficient alternative to both fiber and steel reinforced concrete with pultrusion manufacturing shown as one of the most effective methods of precasting concrete. The intention of this thesis project is to detail the components, functions, and outcomes shown in the development of an automated pultrusion system for manufacturing textile reinforced concrete (TRC). Using a preexisting, manual pultrusion system and current-day manufacturing techniques as a basis, the automated pultrusion system was designed as a series of five stations that centered on textile impregnation, system driving, and final pressing. The system was then constructed in the Arizona State University Structures Lab over the course of the spring and summer of 2015. After fabricating each station, a computer VI was coded in LabVIEW software to automatically drive the system. Upon completing construction of the system, plate and angled structural sections were then manufactured to verify the adequacy of the technique. Pultruded TRC plates were tested in tension and flexure while full-scale structural sections were tested in tension and compression. Ultimately, the automated pultrusion system was successful in establishing an efficient and consistent manufacturing process for continuous TRC sections.
ContributorsBauchmoyer, Jacob Macgregor (Author) / Mobasher, Barzin (Thesis director) / Neithalath, Narayanan (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / The Design School (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Manufacture of building materials requires significant energy, and as demand for these materials continues to increase, the energy requirement will as well. Offsetting this energy use will require increased focus on sustainable building materials. Further, the energy used in building, particularly in heating and air conditioning, accounts for 40 percent of a buildings energy use. Increasing the efficiency of building materials will reduce energy usage over the life time of the building. Current methods for maintaining the interior environment can be highly inefficient depending on the building materials selected. Materials such as concrete have low thermal efficiency and have a low heat capacity meaning it provides little insulation. Use of phase change materials (PCM) provides the opportunity to increase environmental efficiency of buildings by using the inherent latent heat storage as well as the increased heat capacity. Incorporating PCM into concrete via lightweight aggregates (LWA) by direct addition is seen as a viable option for increasing the thermal storage capabilities of concrete, thereby increasing building energy efficiency. As PCM change phase from solid to liquid, heat is absorbed from the surroundings, decreasing the demand on the air conditioning systems on a hot day or vice versa on a cold day. Further these materials provide an additional insulating capacity above the value of plain concrete. When the temperature drops outside the PCM turns back into a solid and releases the energy stored from the day. PCM is a hydrophobic material and causes reductions in compressive strength when incorporated directly into concrete, as shown in previous studies. A proposed method for mitigating this detrimental effect, while still incorporating PCM into concrete is to encapsulate the PCM in aggregate. This technique would, in theory, allow for the use of phase change materials directly in concrete, increasing the thermal efficiency of buildings, while negating the negative effect on compressive strength of the material.
ContributorsSharma, Breeann (Author) / Neithalath, Narayanan (Thesis advisor) / Mobasher, Barzin (Committee member) / Rajan, Subramaniam D. (Committee member) / Arizona State University (Publisher)
Created2013
Description
This qualitative, classroom-based study investigates how 24 middle school students engaged with grammar in an instructional approach that bridged “grammar in context” practices with writing transfer practices. This “transfer-minded” approach invited students to monitor and reflect on their grammar choices in writing as a way to foster metacognition; it also guided students to consider other and future writing contexts where they could use the grammar they were learning as a way to foster transfer and long-term writing development. The dissertation findings detail the role of individual factors on student engagement with grammar in this study. The findings also share how students thought about and used grammar in their writing. Finally, the dissertation reveals how students engaged with the instructional practices, helping map successful and promising areas for effective grammar instruction.
ContributorsScholes, Justin (Author) / Early, Jessica (Thesis advisor) / Saidy, Christina (Committee member) / Graham, Steve (Committee member) / Arizona State University (Publisher)
Created2022
Description
This qualitative case study explores the experience of three first-year English language arts educators within a small community of practice designed to provide personal and professional support for beginning teachers. The participants engaged in a 12-week session where weekly meetings, which alternated between workshop and discussion, focused on participant experiences, sustainable teaching practices, and English language arts pedagogy. The study shares the curricular design of the community as well as the issues and ideas that were raised about teaching and the teaching life. Data were collected over the entire 12 weeks as well as in follow-up interviews conducted within four weeks of the last meeting. Data were drawn from the following sources: (1) pre-and-post-community questionnaires, (2) audio recorded meetings, (3) researcher notes and memos, (4) follow-up interviews. Using Wenger’s (1998, 2009) theory of communities of practice as well as sustainable teaching theory (Burns et al., 2018), this study documents the value of early career communities of practice and indicates that early career communities are necessary in light of the emotional dimensions of teaching English language arts, the many aspects of successful teaching that are not covered in teacher preparation programs, and the need for both personal and professional support, camaraderie, and continued learning for beginning teachers.
ContributorsGlerum, Michelle R (Author) / Early, Jessica (Thesis advisor) / Saidy, Christina (Committee member) / Warriner, Doris (Committee member) / Arizona State University (Publisher)
Created2022
Description
School safety is a wicked problem due to shifting needs and available information, the diverse actors affected and involved, fluctuating budgetary demands and ramifications, and relations to broader social and political issues. School safety challenges encompass a range of factors, including threats of violence and fears related to school shootings, the effects of the COVID-19 pandemic on student mental health and well-being, and research and rhetoric on punitive discipline practices and the school-to-prison nexus, especially regarding the use of School Resource Officers (SROs). Following the murder of George Floyd by police in the Summer of 2020 and the subsequent civil unrest, several school districts across the United States began to reconsider the use of police on campuses, with some choosing not to renew contracts with police departments for SROs. In most cases, school district leaders (e.g., governing boards or superintendency) unilaterally made this decision without authentic school community input or participation in inclusive processes and shared decision-making opportunities. Phoenix Union High School District (PXU), a diverse, urban high school-only district that serves 25,000 students, was one of those districts that did not renew its contract with the local police department for SROs. Instead, PXU undertook efforts to reimagine school safety through two parallel participatory processes: School Participatory Budgeting (PB) and a Safety Committee. Drawing from the literature on school safety, participatory governance, and student voice, I explore school safety's historical and current landscape, specifically the use of SROs and punitive discipline measures, alongside methods of participatory governance within K-12 educational institutions and the benefits, challenges, and implications of student voice in shared decision-making processes. I then chronicle the two processes implemented in PXU using the Empowered Deliberative Democracy (EDD) conceptual framework and a case study methodology. I analyze and discuss the tensions and the transformative potential of participatory processes that include student and school community voices in finding solutions to difficult challenges. In conclusion, I summarize the case study and raise recommendations for using participatory processes to address wicked problems in K-12 educational institutions.
ContributorsBartlett, Tara Lynn (Author) / Schugurensky, Daniel, 1958- (Thesis advisor) / Fischman, Gustavo (Committee member) / Pivovarova, Margarita (Committee member) / Arizona State University (Publisher)
Created2023
Description
This qualitative study examined how the scientific journal PLOS ONE assembled its editorial board, which is made up of more than 10,000 academic editors based in 131 countries. The study investigated how the board’s geographic diversity is enacted by the human and nonhuman actors of the assemblage. PLOS ONE is an open-access (OA) mega-journal launched in 2006 by the nonprofit organization Public Library of Science (PLOS). It publishes over 16,000 papers yearly, covering more than 200 scientific subjects of science and medicine. I drew on Actor-Network Theory (ANT), which proposes that processes, ideas, organizations, or objects are continuously generated within a network of relationships between human and nonhuman actors. I used the case study methodology and employed two qualitative research methods. First, I conducted semi-structured interviews with 26 academic editors from different fields, including biology and life sciences, chemistry, medicine and health sciences, physics, and social sciences. These editors are affiliated with research institutions across 14 countries. Additionally, I interviewed PLOS leaders, staff members, and a representative from an external contractor. Second, I employed documentary analysis of organizational documents and online secondary data. Findings showed that the human and nonhuman actors of the PLOS ONE editorial board reproduce biases in science based on authors’ and editors’ geographic origin, the journal’s size and the low diversity of PLOS staff members. I also identified that APCs (Article Processing Charges) act as mediators that trigger betrayals among the actors, which has consequences on the stability of the assemblage, especially in terms of trust between the publisher and the scientific community. Finally, this study also identified that publishing an OA mega-journal has contradictions and unexpected effects on the publishing landscape due to its large scale.
ContributorsLujano Vilchis, Ivonne (Author) / Fischman, Gustavo (Thesis advisor) / Kim, Jeongeun (Committee member) / Hailu, Meseret (Committee member) / Dussel, Inés (Committee member) / Arizona State University (Publisher)
Created2023