Science and Mathematics Education Commons^™

Teaching Beliefs And Teaching Practices: A Sequential Mixed Methods Study Of Post-Secondary Mathematics Faculty, Katlyn K. Cox

UNLV Theses, Dissertations, Professional Papers, and Capstones

This mixed methods study explored the relationship between collegiate math instructors’ reported teaching practices, teaching beliefs, and actual teaching practices. Instructors reported their own teaching practices by survey. Qualitative participants were purposively sampled from the quantitative survey results. These qualitative participants presented their teaching beliefs through an initial interview. Afterward, actual teaching practices were confirmed through classroom observations. Lastly, instructors completed reflective interviews to address findings in the previously collected data.Through the survey instrument, this study established common teaching practices of collegiate math instructors. The study identified that on average the post-secondary math instructors in this sample employed between 26 …

Is Dietary Teaching Via Telehealth Effective In Lowering Hgba1c In Adult Patients With Prediabetes Or Type 2 Diabetes?, Mia Mccallum-Crawford

UNLV Theses, Dissertations, Professional Papers, and Capstones

Prediabetes and Type 2 diabetes mellitus (T2DM) are two common conditions diagnosed in the primary care setting. Both conditions benefit from a healthy lifestyle, managing blood sugar levels, and getting diabetes self-management education and support (DSMES). Within the past two decades, the healthcare community in the US has witnessed a substantial rise in diabetes among adults. Overall, the self-management of diabetes continues to worsen nationally. The purpose of this project is to improve patients’ self-management of both Prediabetes and T2DM through nutrition and show how nutritional counseling via telehealth provided by a nurse practitioner can improve HgbA1C values over 3 …

An Educational Intervention In The Emergency Department For Adults Experiencing Vaso-Occlusive Crisis, Chericka S. Reese-Martin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Sickle cell anemia, often referred to as sickle cell disease (SCD), is an inherited blood disorder that affects millions of people globally and affects more than 100,000 Americans, mostly of African or Hispanic descent. The SCD arises from a genetic defect that alters the structure of hemoglobin. The modified hemoglobin causes red blood cells (RBCs) to become stiff, sticky, and sickle shaped. These deformed RBCs block blood flow, cause severe pain, organ and joint damage and strokes. The sickled cells do not deliver oxygen to organs and tissues as healthy cells do, causing slow, inevitable damage over decades and …

Student Perceptions Of Formative Feedback In Mathematics, Derek E. Fialkiewicz

UNLV Theses, Dissertations, Professional Papers, and Capstones

There exists a plethora of quantitative studies which show the effectiveness of quality formative assessment and feedback in the classroom setting (Butler, 1987; Nyquist, 2003; Irons, 2008; Baskula, 2010; Pradana et al., 2017; Hossain, 2018; Pinger et al., 2018). Wiliam (2018) suggests the perceptions of the recipients of the feedback must be considered to determine the most effective levels of feedback. Seidman (2019) explained many researchers in the United States study education, but very few focus on the perspectives of the students and teachers, whose experiences comprise schooling. This qualitative study focuses on the perceptions of Grade 8 Pre-Algebra students …

How Do Beliefs Come Into Play? An Examination Of The Influence Of Core Conceptions On Science Teachers’ Inquiry Lesson Plan Designs, Mehmet Fatih Dulger

UNLV Theses, Dissertations, Professional Papers, and Capstones

Teaching science through inquiry-based methodologies has been advocated by several governmental and professional organizations (National Research Council [NRC], 2000; NGSS Lead States, 2013); however, their use is not widespread. Why is this? What science teachers do in their classrooms is shaped by their beliefs, especially their beliefs about the nature of science, about the goals and purposes of school science and the goals of teaching science, and about the teaching and learning science. By critically examining these core conceptions and their influence on teacher lesson planning, this study aims to shed light on the role conceptions play when teachers design …

What Do General And Organic Chemistry Students Consider When Making Decisions About Acids And Bases? A Phenomenographic Study, Sarah Wood

UNLV Theses, Dissertations, Professional Papers, and Capstones

Chemistry students often struggle in organic chemistry courses. In fact, these courses are viewed by some as “weed-out” classes. There are many fundamental concepts covered in general chemistry that contribute to students’ ability to succeed in organic chemistry. One of those fundamental topics, and the focus of this study, is the topic of acids and bases. Acid–base topics are featured in both general and organic chemistry courses, and the interests of this study lie not only within the realm of organic chemistry but also general chemistry.

The purpose of this study was to determine both undergraduate general and organic chemistry …

Understanding And Addressing Preservice Elementary Teachers’ Misconceptions In Science Education, Nicole Juliana Thomas

UNLV Theses, Dissertations, Professional Papers, and Capstones

Prior research has demonstrated that both children and adults alike hold misconceptions about various scientific phenomena (Snyder & Sullivan, 1995; Driver et al., 1985). These misconceptions range from a variety of different fields, including astronomy and space science, environmental biology, and geology, among others (Miller & Brewer, 2010; Wandersee et al., 1994; Ritger & Cummins, 1991). Research suggests that the vast majority of misconceptions are formed early in a students’ educational career, and these misconceptions could be held throughout adulthood unless they are sufficiently addressed (Coley & Tanner, 2012; Posner et al., 1982; Nehm & Reilly, 2007; Sadler et al., …

The Development Of Prerequisite Skills And Concepts From Task-Based Interviews In Calculus Students With Low-Levels Of Prerequisite Skills, Nicholas Wong

UNLV Theses, Dissertations, Professional Papers, and Capstones

This task-based interview study examined the development of prerequisite skills and concepts and calculus skill and concepts of students who entered a first-semester calculus course with a low level of prerequisite skills. The participants in this study completed three task-based interviews with two tasks in each interview. The research question addressed by this study was, To what extent do task-based interviews reveal students’ prerequisite skills and conceptual understanding for applications of the derivative and how do these skills and understanding develop for students who have been classified as having low levels of prerequisite skills upon entering a calculus course? The …

Exploring Sources Of Engineering Teaching Self-Efficacy For Pre-Service Elementary Teachers, Ezgi Yesilyurt, Hasan Deniz, Erdogan Kaya

Teaching and Learning Faculty Research

Background: The Next Generation Science Standards (2013) put a special emphasis on engineering for K-12 science education. However, a significant number of elementary teachers still feel unprepared to integrate engineering into their science programs. It is, therefore, incumbent upon science educators to update their elementary science methods courses to accommodate engineering especially in the states which adopted the NGSS. In this study, we taught an engineering unit in an elementary science teaching methods course to examine what instructional components and learning experiences provided in the engineering unit enhance teachers’ engineering teaching self-efficacy beliefs. Our research questions addressed to what extent …

Girls In Stem Day: From Space To Dna, An Analysis Of Middle School Girls' Interests In Stem Fields, Emily Carter

Undergraduate Research Symposium Podium Presentations

Research specifically targeted at youth participation in STEM highlights the importance of community engagements outside of school to bolster interest in STEM. We ask the research questions: (1) How do girls who engage with a day-long STEM event at UNLV perceive hands-on science activities? (2) How did girls’ enjoyment of science activities shift their interest in science topics? The purpose of this study is to identify factors that influence middle school girls’ interests in STEM fields through a day-long STEM event. This research was conducted at the University of Nevada, Las Vegas (UNLV) in 2020 called Girls in STEM Day …

The Relationship Between Spatial Ability And The Conservation Of Matter In Middle School, Merryn Cole, Jennifer Wilhelm, Briana Marie-Mcknight Vaught, Corinne Fish, Hailey Fish

Teaching and Learning Faculty Research

Research has shown that spatial ability plays a key role in understanding STEM (Science, Technology, Engineering, and Mathematics) content, including chemistry. Conservation of Matter (CoM) is an essential but challenging topic for chemistry students of all ages to grasp; it is often taught in a way where students memorize it but do not learn what it means conceptually. This research explored the relationship between understanding spatial ability and conceptual understanding of CoM in middle school students. CoM was examined in two ways using the Conservation of Matter Assessment (CoMA): through questions on conservation of atoms and the conservation of mass. …

Using The Critical Mathematics Pedagogical Framework To Teach Adult Basic Education Learners: A Transformative Convergent Parallel Mixed Methods Study, Matthew D. Gromlich

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal of this study was to design and implement curricula in the Adult Basic Education classroom that aligned to the Critical Mathematics Pedagogical Framework. Specifically, this study assessed if ABE students’ mathematics anxiety and mathematics self-efficacy ware affected by curricula that aligns to the Critical Mathematics Pedagogical Framework. Using a transformative convergent parallel mixed methods study, this study showed that students taught using CMPF-based lessons specifically reflected on their own attitudes towards mathematics self-efficacy, mathematics anxiety, number positioning, and the need for societal change around mathematical concepts. Both quantitative and qualitative data were analyzed to highlight student reflections and …

A Nomological Network Analysis Of Innovation In Hospitality Education And Industry, Robert H. Rippee

UNLV Theses, Dissertations, Professional Papers, and Capstones

The development of a theory of innovation for hospitality innovation finds heightened importance due to the COVID-19 Pandemic that has unleashed a devastating and sustained disruption on global hospitality and tourism. The problem for research is that the industry lacks a taxonomy for research on innovation in hospitality. This study addresses the gap in understanding the nomological relationship between innovation constructs and the observable manifestations of innovation in the hospitality industry. This study used an emergent basic qualitative design of a phenomenon through data collected in three phases. Two large samples of literature and a series of focus groups comprised …

A Call For Data-Driven Networks To Address Equity In The Context Of Undergraduate Biology, Seth K. Thompson, Sadie Hebert, Sara Berk, Rebecca Brunelli, Catherine Creech, Abby Grace Drake, Sheritta Fagbodun, Marcos E. Garcia-Ojeda, Carrie Hall, Jordan Harshman, Todd Lamb, Rachael Robnett, Michele Shuster, Sehoya Cotner, Cissy J. Ballen

Psychology Faculty Research

National efforts to improve equitable teaching practices in biology education have led to an increase in research on the barriers to student participation and performance, as well as solutions for overcoming these barriers. Fewer studies have examined the extent to which the resulting data trends and effective strategies are generalizable across multiple contexts or are specific to individual classrooms, institutions, or geographic regions. To address gaps in our understanding, as well as to establish baseline information about students across contexts, a working group associated with a research coordination network (Equity and Diversity in Undergraduate STEM, EDU-STEM) convened in Las Vegas, …

Toward Developing A Valid And Reliable Assessment Of Learners’ Nature Of Engineering Views, Erdogan Kaya

UNLV Theses, Dissertations, Professional Papers, and Capstones

Nature of Engineering (NOE) refers to the epistemological beliefs pertaining to engineering (Antink-Meyer & Brown, 2019; Deniz et al., 2019; Hartman & Bell, 2018; Kaya et al., 2017; Pleasants & Olson, 2019). Given that a person’s engineering values and beliefs can affect how that individual perceives not only certain tasks, but also his/her ability to accomplish them, it is important to support pre-college teachers and students in improving their NOE understanding. This continues to be one of the main goals of pre-college Science, Technology, Engineering, and Math (STEM) education, and has become particularly relevant since the release of the Next …

Epistemic Aspects Of Engineering For K-12 Education, Ezgi Yesilyurt

UNLV Theses, Dissertations, Professional Papers, and Capstones

The recent science education standards placed a special emphasis on engineering design to build a foundation of students’ learning in engineering and enhance their scientific understanding by using engineering as a real-world context. However, the standards documents put a strong focus on engineering design without providing a comprehensive outlook on the features of the engineering discipline. Such an approach could deprive students of the chance to develop disciplinary knowledge and understand the connections between engineering, science, technology, and society. In this respect, the aim of this study was to illuminate the epistemic aspects of engineering for K-12 science and engineering …

College Of Engineering Senior Design Competition Spring 2020, University Of Nevada, Las Vegas

Fred and Harriet Cox Senior Design Competition Projects

Part of every UNLV engineering student’s academic experience, the senior design project stimulates engineering innovation and entrepreneurship. Each student in their senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. A capstone to the student’s educational career, the senior design project encourages the student to use everything learned in the engineering program to create a practical, real world solution to an engineering challenge. The senior design competition helps focus the senior students in increasing the quality and potential for commercial application for their design projects. Judges from local industry evaluate the projects on …

The Impact Of Culturally-Tailored Education On Knowledge And Behavior Related To Screening And Lifestyle Management Of Blood Pressure In African Immigrants, Sarah Erskine

UNLV Theses, Dissertations, Professional Papers, and Capstones

The number of African Immigrants in the United States is increasing. The prevalence of hypertension among Blacks, including African Immigrants are high. In addition to the increased susceptibility to hypertension, lack of disease awareness and unhealthy lifestyle are documented barriers to achieving adequate blood pressure control. The purpose of this project was to determine the impact of implementing a 30-minute, culturally-tailored, evidence based educational session on hypertension to promote knowledge and initiate behavior change in African Immigrants. This was a descriptive, cross-sectional study. Blood pressures were measured and survey instruments such as the Hypertension Evaluation of Lifestyle and Management scale …

Teaching A University Course On The Mathematics Of Gambling, Stewart N. Ethier, Fred M. Hoppe

UNLV Gaming Research & Review Journal

Courses on the mathematics of gambling have been offered by a number of colleges and universities, and for a number of reasons. In the past 15 years, at least seven potential textbooks for such a course have been published. In this article we objectively compare these books for their probability content, their gambling content, and their mathematical level, to see which ones might be most suitable, depending on student interests and abilities. This is not a book review (e.g., none of the books is recommended over others) but rather an essay offering advice about which topics to include in a …

Factors That Influence Persistence Of Biology Majors At A Hispanic-Serving Institution, Shetay Ashford-Hanserd, Kristy Daniel, Dana M. García, Jenn L. Idema

Journal of Research in Technical Careers

To promote diversity within the science, technology, engineering, and mathematics (STEM) workforce, we must identify factors that influence or hinder historically underrepresented minority (URM) students’ persistence to degrees in STEM. We documented potential factors that influence students’ persistence in an undergraduate biology program and created a 14-item, Likert-scale instrument. We recruited 137 undergraduate biology majors at a Hispanic-serving institution in Texas to report which factors they found influential in their decision to remain enrolled in their degree programs. We used a modified social cognitive career theory model of career choice to guide interpretation of the reported influences and identify patterns …

College Of Engineering Senior Design Competition Fall 2019, University Of Nevada, Las Vegas

Fred and Harriet Cox Senior Design Competition Projects

Part of every UNLV engineering student’s academic experience, the senior design project stimulates engineering innovation and entrepreneurship. Each student in their senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. A capstone to the student’s educational career, the senior design project encourages the student to use everything learned in the engineering program to create a practical, real world solution to an engineering challenge. The senior design competition helps focus the senior students in increasing the quality and potential for commercial application for their design projects. Judges from local industry evaluate the projects on …

Fourth To Sixth Grade Teachers’ Invented Real World Problems And Pictorial Representations For Fraction Division, Travis Olson, Micah Stohlmann, Yichen Yang, Xing Huang

Teaching and Learning Faculty Research

Teaching fraction operations for conceptual understanding is a challenging task. For the topic of fraction division especially, teachers need support because teachers find this difficult to teach and elementary and middle school students struggle to learn this concept. Well-structured professional development can assist teachers in exploring their own understanding as well as how to incorporate multiple representations in their instruction. This naturalistic inquiry study investigated fourth to sixth grade teachers’ invented real-world problems and pictorial representations for fraction division. The teachers completed a written assessment focused on conceptual understanding of fraction operations through multiple representations at the beginning and conclusion …

Exploring Mathematics Anxiety Of Students At-Risk For Mathematics Difficulties, Sarah Mccarthy

UNLV Theses, Dissertations, Professional Papers, and Capstones

Students in mathematics classrooms are found to experience various levels of stress and anxiety during instructional time. Negative feelings associated with participation in math activities can lead to both physical and emotional manifestations, affecting performance, achievement, and even confidence with the academic subject. Students found to be at-risk for mathematics difficulties have greater risks when it comes to the possible experience of mathematics anxiety. Students with learning disabilities, students needing supplemental interventions, and students who are English learners can experience potential bouts of anxiety and stress, magnifying academic struggles in the math classroom. In addition, academic deficits can intensify levels …

Introduction To Systems Thinking For The Chemistry Education Community, Marykay Orgill, Sarah York, Jennifer Mackellar

Chemistry and Biochemistry Faculty Research

Within recent history, both science research and science education have been largely reductionist in perspective. While the reductionist approach has resulted in a significant increase in our knowledge of the natural world and in great technological advances, it is not sufficient for addressing global world challenges, such as sustainability, pollution, climate change, and poverty. We, as members of the Systems Thinking in Chemistry Education (STICE) project, argue that for science in general, and chemistry in specific, to continue to advance and for citizens to be prepared to participate knowledgeably and democratically in science-related policy decisions, the reductionist approaches that are …

College Of Engineering Senior Design Competition Spring 2019, University Of Nevada, Las Vegas

Fred and Harriet Cox Senior Design Competition Projects

Part of every UNLV engineering student’s academic experience, the senior design project stimulates engineering innovation and entrepreneurship. Each student in their senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. A capstone to the student’s educational career, the senior design project encourages the student to use everything learned in the engineering program to create a practical, real world solution to an engineering challenge. The senior design competition helps focus the senior students in increasing the quality and potential for commercial application for their design projects. Judges from local industry evaluate the projects on …

The Experience Of Students With Attention-Deficit/Hyperactivity Disorder During The Transition To Middle School, Hannah M. Berry

UNLV Theses, Dissertations, Professional Papers, and Capstones

The transition to the middle school setting from elementary school has been the subject of research for decades as data shows a decline in academic success, socio-emotional health and motivation for students. There is a lack of research based transitional programs to support the needs of students at this time, specifically those with special needs. Though the name and specific criteria for students with ADHD has shifted, the impact this neurological disability has on students and learning is comprehensive. Symptoms of this disorder reach and affect each part of the student and their school experience, as well as those around …

Implications Of An Iterative Design Experiment In Transcendental And Polynomial Functions Within A Flipped Classroom, Aaron Boyd Harris

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study explores an iterative design research experiment of a flipped mathematics classroom over the span of five curricular units involving big ideas of transcendental and polynomial functions. Transcendental and polynomial functions involve an algebraic, analytic, and graphical approach to the concepts and procedures of exponential, logarithmic, power, cubic, quadratic, linear, and rational functions. The Compleat design research methodology (Middleton, Gorard, Taylor, & Bannan-Ritland, 2008) was used to explore a series of instructional sequences that an instructor implemented in a flipped classroom while teaching big ideas of transcendental and polynomial functions.

The experiment occurred over the course of a sixteen-week …

Implementing A Heart Failure Education Program For Bedside Nurses In The Acute Care Setting, David L. Morrow

UNLV Theses, Dissertations, Professional Papers, and Capstones

Heart failure is a chronic disease in which a weakened heart is no longer able to deliver adequate blood flow to supply the body with needed oxygen and nutrients. Heart failure is the most common reason for hospitalization in the United States for patients age 65 and over, accounting for over 1,000,000 hospital admissions annually. Due to the chronic nature of this debilitating condition and associated symptoms, patients discharged from the hospital with a diagnosis of heart failure are at high risk for readmission. Effective self-care behaviors have been shown to reduce readmissions and improve quality of life for these …

Active Learning And Transparency In Teaching Gateway Mathematics Courses, Viktoria Savatorova

UNLV Best Teaching Practices Expo

The need: we concentrate our attention on the gateway courses (for example, PreCalculus ) which have had traditionally low passing scores and retention. Objectives: in our teaching practice we aim to be consistent assuring: Active participation in the class work based on understanding the concepts and ability to implement them; Clear understanding of the requirements and the grading system (what should be done, when it needs to be done, and how to do that?)

Fostering Student Engagement: Four Strategies, Erica Marti, Ryan Sherman, Haroon Stephen

UNLV Best Teaching Practices Expo

In response to studies demonstrating that poor teaching was the cause of many students leaving math, science, and engineering programs, the American Society of Civil Engineers (ASCE) developed the ExCEEd(Excellence in Civil Engineering Education) Teaching Workshop. Several faculty from the UNLV Department of Civil & Environmental Engineering and Construction have attended the highly intensive five-day workshop. To evaluate the impact on student engagement, four basic instructional strategies from the ExCEEdworkshop, applicable to all fields, were tested and assessed during the Fall 2018 semester: Questioning techniques, physical models, instructor involvement, and group work.