Science and Mathematics Education Commons^™

Nebraska Summary #1274: New Holland T7.340 Hd, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Test #2267: Case Ih Steiger 555, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary #1299: Fendt 728 Vario Gen 7.1, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary #1295: Fendt 720 Vario Gen 7.1, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Math Department 2022-2023 Newsletter, Mathematics Department

Mathematics Newsletter

Welcome to our annual Mathematics Department Newsletter. We had an exciting year with many activities and accomplishments. Our students have received awards, attended conferences, conducted research, and have really contributed to the life of the department. Our faculty have had many accomplishments in teaching and scholarship. We conducted several events such as Alumni Night, hosted a guest speaker for the university community, had our Pi Mu Epsilon induction and awards ceremony, and much more. We have heard from several alumni and are happy to report what they are doing. Our Math Club has been becoming more active. On the curriculum …

การพัฒนาความสามารถในการคิดวิเคราะห์และการรวมพลังทำงานเป็นทีมของนักเรียนมัธยมศึกษาตอนต้นโดยใช้กระบวนการเรียนรู้แบบรวมพลัง 5 ขั้นตอน, อธิวัฒน์ สิมบุตร

Chulalongkorn University Theses and Dissertations (Chula ETD)

การวิจัยนี้มีวัตถุประสงค์เพื่อ (1) ศึกษาผลของการจัดการเรียนรู้โดยใช้กระบวนการเรียนรู้แบบรวมพลัง 5 ขั้นตอน ที่มีต่อความสามารถในการคิดวิเคราะห์ของนักเรียนมัธยมศึกษาปีที่ 1 (2) เพื่อศึกษาผลของการจัดการเรียนรู้โดยใช้กระบวนการเรียนรู้แบบรวมพลัง 5 ขั้นตอน ที่มีต่อสมรรถนะการรวมพลังทำงานเป็นทีมของนักเรียนมัธยมศึกษาปีที่ 1 และ (3) เพื่อศึกษาแนวปฏิบัติที่ดีในการจัดการเรียนรู้ผ่านกระบวนการเรียนรู้แบบรวมพลัง 5 ขั้นตอน ที่ช่วยพัฒนาให้นักเรียนมัธยมศึกษาปีที่ 1 มีความสามารถในการคิดวิเคราะห์และสมรรถนะการรวมพลังทำงานเป็นทีม โดยเก็บรวมรวมข้อมูลจากแบบวัดความสามารถในการคิดวิเคราะห์ แบบประเมินสมรรถนะการรวมพลังทำงานเป็นทีม แบบบันทึกหลังสอนของครู และแบบบันทึกอนุทินของนักเรียน กลุ่มเป้าหมาย คือ นักเรียนมัธยมศึกษาปีที่ 1 จำนวน 39 คน สถิติที่ใช้คือ ค่าเฉลี่ยเลขคณิต ส่วนเบี่ยงเบนมาตรฐาน ค่าร้อยละ สถิติทดสอบทีแบบไม่อิสระต่อกันและการวิเคราะห์เนื้อหา ผลการวิจัยพบว่า (1) นักเรียนมีความสามารถในการคิดวิเคราะห์หลังเรียนสูงกว่าก่อนเรียนอย่างมีนัยสำคัญทางสถิติที่ .05 (2) ผลการประเมินสมรรถนะการรวมพลังทำงานเป็นทีมเพิ่มขึ้นและ (3) เมื่อจบวงจรปฏิบัติการ พบว่านักเรียนที่มีผลการประเมินอยู่ในระดับดีมาก คิดเป็นร้อยละ 94.87 และระดับดี คิดเป็นร้อยละ 5.13 สำหรับแนวปฏิบัติที่ดีในการจัดการเรียนรู้คือ (3.1) ครูควรใช้คำถามให้นักเรียนทราบถึงความถนัดของตนเองที่มีต่อภาระงานเพื่อเอื้อให้นักเรียนที่มีความถนัดต่างกันได้มีโอกาสเป็นผู้นำในกิจกรรมที่แตกต่างกัน (3.2) ครูใช้สถานการณ์เชิงอุปมาอุปมัยที่น่าสนใจให้นักเรียนเปรียบเทียบและรวมพลังสร้างชิ้นงาน ทำให้นักเรียนช่วยกันคิดวิเคราะห์โดยใช้การรวมพลังทำงานเป็นทีม (3.3) ให้นักเรียนมีส่วนร่วมในการเลือกสมาชิกและเปลี่ยนบทบาทหน้าที่ในกลุ่มจะช่วยให้นักเรียนมีความเป็นผู้นำและผู้ตามได้ดีขึ้น (3.4) ใช้กระดาษโน้ตในการเขียนระดมความคิด จะช่วยให้นักเรียนกล้าจะแสดงความคิดเห็นและวางแผนร่วมกัน (3.5) ครูควรจัดกิจกรรมให้แต่ละทีมแข่งขันกันโดยมีการเสริมแรงทางบวก และการทดสอบท้ายคาบเป็นทีมและ (3.6) ครูควรให้นักเรียนร่วมกันสร้างชิ้นงานและนำเสนอผลงานหน้าชั้นเรียน เพราะทำให้นักเรียนช่วยกันคิดวิเคราะห์โดยใช้การรวมพลังทำงานเป็นทีม

Gender Differences In High School Students’ Perceived Values And Costs Of Learning Chemistry, Xiaoyang Gong, Bradley W. Bergey, Ying Jin, Kexin Mao, Yan Cheng

Publications and Research

Students’ perceived values and costs of learning chemistry influence their performance and intentions of choosing chemistry-related majors or careers. Based on Situated Expectancy-Value Theory, this study adopted a mixed method approach to examine the conceptualization of values and costs among Chinese high school students and identify their relations with chemistry test performance across gender. Qualitative content analyses revealed that students’ perceived values for chemistry could be categorized into five broad categories: utility value, epistemic value, intrinsic value, aesthetic value, and social value. Chi-square tests and multidimensional scaling revealed that boys and girls perceived values and costs in different ways: relational …

Feed-Forward: Strengthening Assessment Of Pre-Primary And Primary Science And Mathematics Education In Tanzania, Nipael Mrutu, Esther Kibga

Institute for Educational Development, East Africa

Classroom assessment is a critical part of teaching and learning and is a potentially useful tool for enhancing learning outcomes. It provides information on where learners are with their learning goals and what they need to do to improve their understanding and meet the intended learning outcomes. In response to the agent's need for proper interpretation of classroom assessment, researchers and policymakers have developed guidelines, principles, and models to help teachers understand and implement effective assessment conceptions. Despite these initiatives, research continues to show that teachers struggle to interpret assessment policies and implement practices aligned with contemporary formative assessment notions. …

An Examination Of A Decade Of K-5 Mathematics Standards In The United States, Ashley Schmidt

Electronic Theses and Dissertations, 2020-2023

This qualitative content analysis research study examined changes made to K-5 state mathematics standards across the United States from 2012 to 2022. This study aimed to answer the research question: In what ways, if any, do K-5 state mathematics standards differ from the CCSSM? This was accomplished through four additional sub questions which include: (1) In what ways, if any, do K-5 state mathematics student process and practice standards differ from the CCSSM? (2) In what ways, if any, do K-5 state mathematics standards content domains differ from the CCSSM? (3) In what ways, if any, do states describe how …

An Exploration Of K-8 Classroom-Based Mathematics Teacher Leader Development, Treshonda Rutledge

Electronic Theses and Dissertations, 2020-2023

This study investigated classroom-based mathematics teacher leader (CBMTL) development through analysis of interview and focus group transcripts, results from a Mathematics Teacher Leadership Experiences survey, application materials, and an evaluation report for an equity-focused, research-to-practice doctoral program centered on developing CBMTLs. A multiple case study was conducted to interpret and understand how K-8 mathematics teachers identified and described ways in which their participation in the program developed them as CBMTLs. Findings suggest that mathematics teachers develop as mathematics teacher leaders in stages and highlight the effectiveness of the research-to-practice partnership model as an impactful pathway for developing CBMTLs. Themes from …

Surveillance And Monitoring Of Amphibian Pathogens And Evaluating The Impacts Of An Associated Course-Based Undergraduate Research Experience (Cure), Jennifer Perez

EWU Masters Thesis Collection

Amphibians are a highly diverse class of vertebrates and crucial for natural ecosystems, inhabiting both aquatic and terrestrial environments at different life stages. However, amphibians are facing devastating declines largely due to the disease chytridiomycosis, caused by the fungal pathogens Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal). This disease can lead to population declines, biodiversity loss, and species extinction. However, resources to study and mitigate this disease are limited and an opportunity to assist in these efforts has been created in the form of a course-based undergraduate research experience (CURE). Chapter 1 of my thesis used Roger's Diffusion of Innovations …

Identifying Potential Consequences Of Use Of A Measure Through Stakeholder Interviews, Melissa G. Kuhn, Joanna K. Garner, Shanan L. Chappell, Linda Bol

STEMPS Faculty Publications

The advent of Messick’s Contemporary Validity Theory (1994) led researchers in survey and measure design to develop and standardize qualitative and quantitative methods of collecting evidence for the validity of psychological instruments. However, one aspect of this theory, consequential validity, has few agreed-upon evidence-gathering methods (Furr & Bachrach, 2014). This study added a blueprint-driven interview method of collecting forecasted consequences of use of an instrument into the overall process of developing a measure of outreach impact on undergraduate engineering students (Authors, in press). The method, which included a purposeful sampling of end-users, is illustrated with thematically presented results. Potential implications …

School Library Advocacy: Enhancing Opportunities For All Learners, Elizabeth A. Burns

STEMPS Faculty Publications

There is a lack of consistency in how school librarians understand and engage in advocacy for their programs and the profession (Burns, 2015; Lance & Kachel, 2018). It is important that school librarians demonstrate the positive impact they contribute to improving instruction for student learners and advancing access so that all learners have equal opportunities. The school library and school librarian should be available to each student (Kachel, 2021). The School Library Manifesto (2021) includes language to support a strong school library with a qualified school librarian. Advocacy goals can be highlighted throughout this critical set of school library guidelines. …

Impact Of Designed Task-Based Interventions On K-8 Preservice Teachers’ Knowledge And Ability To Solve Measurement Unit Conversion Problems, Ha Nguyen, Tuyin An, Eryn Maher

Mathematical Sciences: Faculty Publications

Converting two-dimensional measurement units presents challenges for K-8 preservice teachers (PSTs) (e.g., 9 ft2 = __ yd2). Place value deficiency, lack of understanding of metric system measurement units, misconceptions about relationships between measurement units, and uncertain knowledge of ratios have been identified as causes of student error in one-dimensional analysis (e.g., Livy & Vale, 2011; Morris, 2001; Southwell & Penglase, 2005). However, PSTs’ strategies for solving two-dimensional measurement unit conversion problems (MUCPs) and possible interventions for improvement are rarely investigated in research. The purpose of this study is to design and test a set of tasks that may help students …

Enrollment In Science, Technology, Engineering, And Math Courses After Enactment Of Texas' House Bill 5, Carlana Cla'shette Allen

Walden Dissertations and Doctoral Studies

Student participation and performance in science, technology, engineering, and math (STEM) have been an education concern in the United States for years. In 2013, Texas lawmakers passed House Bill 5 (HB5) to support increases in STEM awareness, particularly among ethnic minority and female students. To date, no studies have been conducted on the impact, if any, of HB5 on Texas high school students’ course selections in STEM areas. Further, it is unknown whether the impact that does exist is equally distributed across socioeconomic status (SES), race/ethnicity, and gender groups. The purpose of this nonexperimental correlational quantitative study was to determine …

Integrating The Pedagogy Of United States’ Fourth-Grade Math Teachers With International Approaches, Dennis Francis Tierney

Walden Dissertations and Doctoral Studies

Standardized testing results in fourth-grade math have shown that students in the United States continually score below students in many other nations, despite funding education at levels well above the global average. The problem addressed in this study was that fourth-grade math students in the United States were not performing as well on standardized tests as students of other nations and international cities. Guided by Vygotsky’s social learning theory, the purpose of this qualitative, exploratory case study was to investigate the perceptions of teachers from U.S. and international settings about different approaches to effective fourth-grade math instruction, inherent obstacles to …

High School Teachers’ Experiences And Perceptions Facilitating Student Discourse And Collaborative Structures For English Language Learners In Biology, Chrissy Ann Brouwer

Walden Dissertations and Doctoral Studies

The problem that was addressed in this study was that the academic needs of English Language Learners (ELLs) were not being met in biology classes in high schools in the local district because teachers were not consistently facilitating instruction using the required strategies of student discourse and collaborative structures. The purpose of this qualitative study was to explore teachers’ successes, challenges, and need for supports when using the required strategies with their ELLs. Knowles’ theory of andragogy and Shulman’s theory of pedagogical content knowledge guided this study examining how the adults’ learning of the required strategies impacted their ability to …

Investigating The Relationship Between Empowerment And Secondary Science Teachers’ Technology Integration Knowledge, Jane Elizabeth Walsh

Theses and Dissertations--Educational Leadership Studies

Empowered teachers believe they can improve their work conditions and positively impact student outcomes. Likewise, teachers with technology integration knowledge can effectively use technology to enhance lessons and improve student learning. This quantitative correlational study investigated teachers’ empowerment, teachers’ technology integration knowledge, and associations between empowerment and technology integration knowledge. Two hundred fourteen randomly selected high school science teachers from across the United States responded to a survey intended to measure empowerment and technology integration knowledge. The teachers' average responses indicate that teachers generally agree with statements surrounding empowerment (M = 3.93, SD = 0.54) and technology integration knowledge …

The Perceptions And Usage Of The Interactive Video Playposit In A General Chemistry Course, Tracy Gastineau-Stevens

Theses and Dissertations--Education Sciences

Technology within science, technology, engineering, and mathematics (STEM) classrooms has been a topic of discussion for decades (Reiser, 2001, 2007). With the inclusion of more technologies or digital tools in the classroom has pushed classes towards a blended learning or flipped classroom approach (Atkins 2015; Tayebinik & Puteh, 2013; Williams et al., 2008). One such digital tool that has started gaining traction in the STEM classroom is the interactive video (M. K. Seery, 2013; Smith, 2013). Interactive videos allow students to watch the general lecture material outside of class and work through problems during normal class time (M. K. Seery, …

Developing Pedagogical Content Knowledge As Communal Practice: A Case Study Of Chemistry Graduate Teaching Assistants, Walker Bryan Mask

Theses and Dissertations--Education Sciences

Learning does not only happen during dedicated instructional time, which also applies to learning how to teach. Teachers can reflect on their practice while working to continue to improve and develop their teaching skills. In addition to self-reflection, teachers can also learn from their colleagues to experiment with new practices and take others’ teaching knowledge into their repertoire. Understanding how these two processes function can lead to developments in teacher education and professional development, specifically for initiatives that seek to promote collaboration among teachers. Post-secondary educators in particular can benefit from collaborative and reflective practices to improve their teaching, especially …

Understanding And Advancing College Students' Mathematical Reasoning Using Collaborative Argumentation, Rachel Kay Heili

Graduate Theses/Dissertations

This study explored students’ mathematical reasoning skills and offered supports to advance them through a collaborative argumentation framework in a college intermediate algebra class. The goals of this study were to make observations about student reasoning, identify specific actions to address those observations, and document student growth in reasoning as a result of those actions. An iterative analysis, mixed method study was conducted in which the researcher engaged students in responding to questions that required conceptual understandings using a collaborative argumentation framework as a tool to identify and code components of their responses—claim, evidence, and reasoning. After coding and analyzing …

Nebraska Tractor Test: 2263 John Deere 9r 590 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Tractor Test: 2273 John Deere 5130m Powrquad Plus, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Actividad 3: ¡Advertencia!, Patrick Young

Tema 5: ¿Por qué la gallina cruzó la calle?

En un ciclo de ingeniería y diseño se producen múltiples repeticiones de diseño. Esto es así desde el inicio de la idea hasta la instalación de una estructura de paso para animales. En el diseño hay que tener en cuenta más factores que los mencionados anteriormente, como la temperatura, las precipitaciones, el tráfico de vehículos, el ruido y los gases de escape de los vehículos.

Actividad 3: ¡Construye Rápido!, Patrick Young

Tema 1: Estructura y proceso

Uno de los costos de cualquier proyecto de carretera es el impacto económico de desviar el tráfico durante la construcción. Los métodos que minimizan las interrupciones reducen costos y suelen mejorar la seguridad. Los métodos de construcción acelerada de puentes (ABC, por sus siglas en inglés) incluyen la prefabricación de la mayor parte posible del puente fuera del lugar de la obra. Las piezas grandes se llevan al lugar y se instalan según un plan que minimiza el tiempo necesario para desviar el tráfico.

Activity 4: Testing Student-Made Concrete Decks, Patrick Young

Theme 1: Structure and Process

When a structural beam is loaded from above, the force creates compression on the upper surface and tension on the lower surface. Concrete can withstand ten times as much compression as it can tension. Since concrete is much less capable of supporting tension, it is along the bottom that steel reinforcement is most important.

Activity 3: Traffic Management, David Hernandez, Peg Steffen

Theme 3: Traffic Management

Traffic management in busy urban areas is an extremely complex problem. Issues such as traffic congestion from home to work, suburban growth, preservation of scenic landscapes and historic neighborhoods, and the ability to walk, bike, and access public transit make traffic management a challenge. Traffic Management can include lane closures, detours, pedestrian access, and speed limits. It also includes intersections engineered for safe passage of vehicles in a stream of traffic that must cross each other's paths. Complicating factors for intersections include bikes, pedestrians, and emergency vehicles.

Activity 3: Rooting For You, Karen Ye

Theme 4: Please Pass the Salt

Snow and ice removal are needed in winter for safe roads. Salt is very effective along with other chemicals, but these may cause harm to plants, wildlife, and humans. Salt seeps into groundwater and may create problems with water resources. High levels of salt affects the amount of oxygen in water, organism growth, reproduction, and food sources. Whether the chemicals cause harm to an organism depends on the amount of chemicals and how long the organism is exposed to them. Salt can also reduce soil minerals and absorb water that plants need. Other impacts on plants include leaf damage, stunted …

Activity 1: Cooler Than Me, Karen Ye

Theme 4: Please Pass the Salt

All matter is made up of atoms and molecules. Even though we can’t see them with our bare eyes, these tiny particles are constantly moving. The temperature of a substance is a measure of its average kinetic energy (the energy it has due to the motion of the particles). As the temperature increases, particles gain more energy, move more quickly and spread further apart.

No matter where one lives in Illinois, you are impacted by winter weather. Deicing and snow removal account for a large portion of state and local highway budgets. Salt is commonly used for melting snow and …

Actividad 3: Ayudándote A Crecer, Patrick Young

Tema 4: Por favor, pásame la sal

Es necesario quitar la nieve y el hielo en invierno para que las carreteras sean seguras. La sal, junto con otros productos químicos, es muy eficaz para hacerlo, pero estos pueden ocasionarle daño las plantas, a la vida silvestre y a los seres humanos. La sal se filtra al agua subterránea y puede ocasionar problemas con los suministros de agua. Los niveles elevados de sal afectan la cantidad de oxígeno en el agua, el crecimiento de los organismos, la reproducción y las fuentes de alimentos. La posibilidad de que las sustancias químicas le ocasionen daño a un organismo depende de …