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Highly Confident But Slightly Uncertain: A Long Overdue Reinvention Of The School Scientific Method, Teaching - Volume 4, Stephen Demeo

Publications and Research

In Volume 4, the last book of the series, I continue the argument for greater parity between conceptual knowledge—the "what" of science—and methodological knowledge—the "how" of science—but in the context of teacher instruction. To this end, two literature reviews are presented: One on how students build confidence, specifically regarding the reliability or consistency of measurement or results, and the other on scientific uncertainty. Research studies focusing on student misconceptions are summarized and organized from the elementary to the college level. These literature reviews describe invaluable ways for teachers to improve their instruction, while providing examples of experiments that can be …

Trattato Dell’Alcibra Amuchabile (Anonimo): A Guided Translation, Gary Towsley, Olympia Nicodemi

Geneseo Authors

The Trattato dell’Alcibra Amuchabile is a pre-modern algebra text from c. 1365. It is written in a Tuscan dialect of Italian and is situated in the abbacus school tradition, schools that taught the mathematics needed for a mercantile society. Like all the algebra written in Italy at the time, it was inherited from al-Khwarizmi and, like his, written with no symbols—no x’s, y’s, plus signs, etc. It was what is sometimes called “rhetorical algebra.”  There is very little source  material available in English from this important era in the history of algebra. This book helps fill that gap. …

Highly Confident But Slightly Uncertain: A Long Overdue Reinvention Of The School Scientific Method, Uncertainty And Error - Volume 3, Stephen Demeo

Publications and Research

Volume 3 explores the essential roles of uncertainty and error in scientific experimentation. It distinguishes between scientific error and scientific uncertainty: Scientific error refers to the difference between an experimental value and an accepted literature value, as well as the difference between data points in an x-y scatter plot and a predicted trendline. Scientific uncertainty, on the other hand, is associated with doubt arising from instrument limitations, variability within a data set, and psychological factors. Human error is set apart as mistakes or blunders, not to be conflated with scientific error.

Of utmost importance to the scientific investigator is the …

Highly Confident But Slightly Uncertain: A Long Overdue Reinvention Of The School Scientific Method, The X - Volume 1, Stephen Demeo

Publications and Research

In Volume 1, I critique the traditional School Scientific Method—an oversimplified, underdeveloped, and short, stepwise process—and argue for a more authentic, detailed, and rigorous approach to experiment-based scientific inquiry in education. I briefly explain the historical roots of the School Scientific Method, its benefits in increasing the exposure of experimental science to the masses, and its limitations in fostering more authentic scientific thinking and experimental practice.

In place of this traditional and problematic method, I introduce a graphic organizer called sciXpsy to foster both big-picture and detailed scientific thinking. The heuristic combines scientific concepts and methodology with the psychology of …

Highly Confident But Slightly Uncertain: A Long Overdue Reinvention Of The School Scientific Method, Confidence - Volume 2, Stephen Demeo

Publications and Research

Focusing on the psychology of empirical science, Volume 2 is an in-depth exploration of how students can build confidence in scientific data. Central to the text are twelve Confidence Indicators, a comprehensive set of approachable strategies and methodologies that help investigators produce, evaluate, and argue for reliable and valid empirical data. They include:

Good (and Ethical) Laboratory Practices

Repetition

Peer Replication/Review

Secondary Tests

Comparisons with Standards

Plots and Patterns

Conceptual Support

External Data Sources

Precision

Accuracy

Checking Calculations

Redesign/What-If Ideas

This volume includes numerous school science experiments that demonstrate how these indicators are applied across a wide range of educational …

A Proposed Typology Of Nos Empirical Research: Trends And Implications, Maryam Saberi, Noushin Nouri, William F. Mccomas

Teaching and Learning Faculty Publications

Nature of Science (NOS) is a vital school subject with extensive publication record including results from many empirical investigations. This project examined the range, nature, and trends in empirical NOS studies from six major science education research journals over a recent 25-year period with additional recent data. Using systematic literature review techniques (SLR) and subsequent qualitative methods, we developed a comprehensive typology of empirical NOS articles. Ten categories emerged: Teaching NOS to students; Teaching NOS to teachers; Teachers’ NOS classroom practices and knowledge transfer; NOS assessment development and application; Analyses of textbooks and science curricula; Relationships between NOS knowledge and …

Why Are Western Australian Girls Less Motivated Than Boys To Study Senior Secondary Higher-Level Mathematics Courses? Relationships Between Gender, Prior Achievement, And Mathematics Course Aspirations, Jane Kirkham, Elaine Chapman

Research outputs 2022 to 2026

Secondary school students, and particularly girls, may avoid enrolling in higher-level mathematics courses despite having the competence to succeed in these courses. Understanding the reasons behind these choices is essential to addressing this concern. In this study, the teachers of Western Australian Year 10 students (n=886) nominated the mathematics course in which they believed each participating student could succeed in Year 11 with participants grouped into four achievement cohorts on this basis. Then each teacher course nomination was compared to participants’ own course selection with participants classified as either aspiring below or at/above their judged potential achievement level. We then …

Toward A Didactical Phenomenology For The Completeness Axiom, Sean Larsen, Tenchita Alzaga Elizondo, Kristen Vroom, Stephen Strand Ii

School of Mathematical & Statistical Sciences Faculty Publications

The study is part of an instructional design project focused on introductory real analysis. The goal of the project is to develop a theoretically grounded and empirically supported instructional approach that builds on students’ experiences in the calculus sequence to engage them in the reinvention of the rigorous foundations of the calculus. An essential aspect of this foundation is the completeness of the real numbers. Drawing on the didactical phenomenology heuristic from the theory of Realistic Mathematics Education (RME), we conducted an iterative instructional design study focused on the completeness axiom. The work proceeded in two phases. First, we conducted …

Instructional Strategies For Developing Mathematical Critical Thinking Skills In Secondary Education: A Pris-Ma-Based Systematic Review (2015-2025), Friska Ledina Situngkir, Mangaratua Simanjorang

Jurnal Pendidikan Sains

Mathematical critical thinking skills (MCTS) are essential 21st-century competencies that secondary students must develop. However, prior studies indicate these skills remain underdeveloped due to conventional teaching methods focused on procedural mastery. This systematic review, conducted in accordance with PRISMA 2020, synthesized empirical evidence on instructional strategies for fostering MCTS in secondary education. Searches were performed in Scopus, Web of Science, ERIC, ScienceDirect, and Google Scholar for publications between 2015-2025. From 1,342 records initially retrieved, 28 empirical studies were selected for full analysis. The review identifies five principal strategies: Problem-Based Learning (PBL), Inquiry-Based Learning (IBL), STEM/STEAM, Project-Based Learning (PjBL), and ethnomathematics. …

Pintarin.Edu Application: Assessment Platform As A Complementary Learning Material For The Teaching Principles And Assessment I And Ii Courses, Hayuni Retno Widarti, Munzil Munzil, Raden Bambang Sumarsono, Richa Nan Maharani, Juwita Karina Pratiwi, Deni Ainur Rokhim

Jurnal Pembelajaran Sains

This study aims to design, develop, and launch the Pintarin.Edu application as a lifelong learning-based assessment medium to support the Principles of Teaching and Assessment I and II courses for prospective professional teachers (PPG) students. The innovation of this research lies in the integration of reflective assessment, continuous feedback, interactive discussion features, automatic post-tests, rubric-based task management, and Classroom Action Research (CAR) progress monitoring in one structured digital platform. This study uses a 4D development model (Define, Design, Develop, Disseminate) which includes needs analysis, feature design and development, product validation and revision, and trial and implementation. Validation was carried out …

Nasa Student Launch Initiative And 4-H Stem Engagement, Kelly Dziak

Journal of Extension

In 4-H programs, youth take the lead as scientists and engineers in their project work. NASA's Student Launch Initiative challenges youth to design and launch high-powered rockets carrying scientific payloads. This competition models the work process of real-world NASA contractors. In 2023 and 2024, the Morris County New Jersey ResistoJets Rocketry 4-H Club competed as the only team representing the 4-H youth development program. This experience intentionally placed youth in authentic roles as scientists, researchers, engineers, and educators. The goals of NASA's Student Launch Initiative and 4-H align to provide a rich learning experience for youth interested in STEM.

Constructing Evidence And Epistemic Agency In Science, Katherine S. Misar

The Language and Literacy Spectrum

This microethnographic discourse analytic study uses an academic literacies theoretical lens to examine how a highly regarded urban high school biology teacher taught students to write from scientific data and positioned of students with epistemic agency using modeling instruction. Drawing on 6 lessons from one instructional unit over the course of two weeks; data sources include audio and video recordings, 30 transcribed literacy events, students’ written work, teacher interviews, case study student interviews, and photos. Participants included an experienced teacher and a student teacher using modeling instruction and 23 “accelerated” biology students in an urban high school. This study addresses …

Developing An Ecosystem Of Stem Success For Built Environment Scholars, Melanie Villatoro, Hamid Norouzi

Publications and Research

The National Science Foundation S-STEM program at NYC College of Technology (City Tech), Developing an Ecosystem of STEM success for Built Environment Scholars (Award Number 2150432), focuses on supporting and developing scholars in the majors relating to the Built Environment which include Civil Engineering Technology, Construction Engineering Technology, Electrical Engineering Technology, Mechanical Engineering Technology and Environmental Control Technology. The S-STEM program aims to reduce financial barriers for low-income students by providing scholarships. SSTEM scholars are provided with faculty mentors and opportunities to engage in cohort building activities that include field trips, research, workforce internships, and networking sessions. The project began …

Pathways To Green Economy Occupations In Engineering And Construction, Melanie Ekka Villatoro, Ivan L. Guzman, Marzi Azarderakhsh

Publications and Research

The Department of Construction Management and Civil Engineering technology (CMCE) at New York City College of Technology is incorporating curricular modifications to prepare our students to enter “focus occupations,” identified by New York City as critical to the sustainable growth of the Green economy. We offer three degrees in construction management, civil engineering technology and construction engineering technology. The Department was recently selected as part of the 2025 ASEE Engineering for One Planet (EOP) mini grant cohort. The EOP grant provided support for curriculum development to incorporate sustainability focused learning outcomes. The project team used the EOP framework to modify …

The Impact Of Madden-Julian Oscillation On Rainfall Variability In South Sulawesi And Its Implications For Science Education, Misbahuddin Mansur, Pariabti Palloan, Agus Susanto

Jurnal Pendidikan Sains

This study examined the relationship between the Madden–Julian Oscillation (MJO) and rainfall variability in South Sulawesi Province, Indonesia, using daily rainfall observations from 24 stations during 1990–2020. A quantitative observational design based on long-term climatological time-series analysis was employed. MJO activity was identified using the Real-time Multivariate MJO (RMM) index, while rainfall variability was analyzed through rainfall anomalies, rainfall frequency, and spatial patterns across Seasonal Zones (ZOM). The results indicate that active MJO phases were generally associated with wetter conditions and higher rainfall frequency, whereas suppressed phases corresponded to drier conditions. Rainfall responses varied considerably among regions, with coastal areas …

From Cork To Coasting: A Multi-Stage Ode Model Of Water-Rocket Flight, Viktoria Savatorova, Patryk Kustra, Ethan Dyer, Connor Carlson, Aleksei Talonov

CODEE Journal

Water rockets provide an affordable and engaging context for exploring applications of differential equations. Motivated by outreach activities conducted with undergraduate students, we develop a four-stage mathematical model of vertical water-rocket flight that is suitable for use in an ODE or mathematical modeling course. The model includes the cork-release phase, water-thrust propulsion, air-thrust propulsion with compressible and potentially choked flow, and the final ballistic stage with quadratic drag. While retaining key physical features, the model can be formulated as a system of ordinary differential equations that can be integrated numerically using tools familiar to students. We compare model predictions with …

Examining The Effect Of Assistant-Centered Peer Interventions On Student Belonging And Academic Performance In Introductory Physics And Introductory Astronomy College Courses, Shiva Basir

Dissertations

Physics education research (PER) plays an important role in improving teaching strategies and student outcomes in STEM education. This study examined relationships among academic preparedness, sense of belonging, and academic performance in introductory physics and introductory astronomy courses at the University of Missouri–St. Louis (UMSL). Diagnostic assessments, belonging surveys, and academic performance measures were used across multiple instructional phases. The study also explored the implementation of assistant-centered peer interventions model, targeted math reviews, and motivational starts designed to support student engagement and belonging. Findings suggested meaningful relationships among belonging, confidence, and academic performance, while highlighting the importance of supportive instructional …

You Mean What? Commognitive Conflict In Resolving Contextual Logarithm Problems, Endrayana Putut Laksminto Emanuel, Fatkul Anam, Radhitya Duta Pradana, Anik Kirana, Sikky El Walida

Jurnal Pendidikan Sains

Students’ approaches to solving contextual mathematics problems involving logarithms vary significantly due to differences in their prior mathematical understanding. These differences may trigger commognitive conflict during the interpretation and reasoning processes when students attempt to construct mathematical meaning from contextual situations. This qualitative study aimed to explore how commognitive conflict emerges as a mechanism of mathematical interpretation in students’ discourse while solving logarithmic contextual problems. Twenty students participated in the study and were grouped based on their performance. One student was selected as the main research subject for an in-depth analysis. The findings reveal that commognitive conflict appeared in two …

Analysis Of Student’S Critical Thinking Skills In Science Learning : A Gender-Based Analysis, Evi Elisanti, Larassati Larassati

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The lack of studies on the development of critical thinking skills based on students' gender and the limited thinking processes demonstrated by male and female students in science classes. The purpose of this study is to analyze students' critical thinking skills in science learning: a gender-based analysis. The research sample subjects were 4th grade 107 class V students in one of the public elementary schools in the city of Surakarta. This type of research used descriptive statistics and inferential statistics to analyze the data. The novelty of this study broadens the perspective that gender differences are not a matter of …

Pinnlab: An Interactive Dashboard For Teaching Data-Driven Parameter Estimation In Differential Equations Using Physics-Informed Neural Networks, Mohan J. Parthasarathy, Padmanabhan Seshaiyer

CODEE Journal

Undergraduate instruction in ordinary differential equations (ODEs) is typically organized around the forward problem: finding solution trajectories when the governing equation and its parameters are known. In scientific practice, however, inverse problems are often more relevant, requiring unknown parameters to be inferred from noisy observations while assessing whether a proposed model is consistent with the data. We introduce PINNLab, an open-source MATLAB dashboard designed to help undergraduate students explore inverse modeling through physics-informed neural networks (PINNs). PINNLab presents PINNs as a complementary data-driven framework that connects differential equations, optimization, empirical data, and scientific machine learning. The instructional sequence is organized …

Making A Makerspace: The Innervate Lab As A Reimagined Technology Education Space, Raaghav Pandya, Euisuk Sung, Caroline Darin

Publications and Research

With the growing emphasis on creativity, collaboration, and reflective thinking in technology and design education, technology labs are expected to shift from technical priorities to open, collaborative spaces. Designed within an existing technology education facility, the paper explored what it means to “technology lab” that merges the technical with the reflective, the cultural with the material, and the innovative with the contemplative. This paper presents the intellectual and aesthetic journey of creating an innovative makerspace within a technology education context and explains how this work embodies a sustainable model for training future technology educators. Our approach was informed by the …

A Professional Development Course On Data-Driven Dynamical Systems At A Primarily Undergraduate Institution: Part A - Scientific Content, Alessandro M. Selvitella, Jeffrey R. Anderson

CODEE Journal

In the age of data-driven decision making, ordinary differential equations (ODEs) remain a powerful and interpretable framework for modeling dynamic processes, especially when integrated with modern tools from statistical learning and data-driven dynamical systems. Yet, general undergraduate and graduate curricula do not typically address key opportunities in data-driven dynamical systems.

This first paper in a series focuses on the mathematical and methodological core of a professional development course first developed in the academic year 2025-2026 at a Primarily Undergraduate Institution, Purdue University Fort Wayne. The curriculum developed in this course emphasized how regression, regularization, and sparse identification can be used …

Beyond The Best Fit: Fitting Sir-Style Models To Data While Prioritizing Biological Meaning, Meredith L. Greer

CODEE Journal

Many students find comfort in mathematics because math classes have been a place where they can find the “right answer” to exercises. Modeling courses typically emphasize more nuance, teaching students to try modeling approaches, compare back with real-world mechanisms and data, and then refine their models, in an ongoing cycle. One topic, however, can cause students to quickly revert into “right answer” mode: fitting a model to data. Phrases such as best fit and minimize the distance suggest there is one optimal solution that can be determined by an algorithm, and these algorithms typically have no relationship to the biology …

Exploring Engineering Technology: A Multi-Year, Multidisciplinary Project-Based Engineering Technology Workshop, Benito Mendoza, Angran Xiao, Muhammad Ummy

Publications and Research

Many students enter engineering technology programs with a limited understanding of disciplinary differences, curricular expectations, and career pathways, contributing to early dissatisfaction and attrition. To address this challenge, we developed Exploring Engineering Technology, a multidisciplinary, project-based workshop that introduces students to Mechanical, Electrical, and Computer Engineering Technology through a shared robotic systems project. This paper presents a multi-year design-based educational research (DBER) study documenting the iterative refinement and sustained implementation of the workshop across three consecutive summers (2023–2025) at a large urban public college. Using a consistent post-workshop survey administered across cohorts and aggregate student progression indicators, we examine …

Voice And Choice: Exploring The Role Of Student Agency In High School Math Course Placement, Anne Patia Carpenter Sterry

Electronic Theses and Dissertations

This study examined how students make sense of the mathematics placement process within a high-rigor independent school. In contexts where placement decisions shape access to advanced coursework, students’ interpretations of these decisions may influence both their academic trajectories and their developing mathematical identities. The purpose of this qualitative bounded case study was to understand the experiences of students who enrolled in mathematics courses that differed from placement recommendations, focusing on their motivations for self-selection, their interpretations of feedback from adults and peers, and how these experiences shaped their mathematical identities.

Data were collected through semi-structured interviews with 10 high school …

Structure-Based Discovery Of Malate Dehydrogenase Inhibitors With Efficacy Against C. Parvum Oocysts, Ankita Bharatbhai Kheni

Biochemistry and Molecular Biology

Cryptosporidium parvum, the etiological agent of Cryptosporidiosis (diarrheal illness) represents a significant global health burden, particularly affecting immunodeficient and pediatric populations. Since the parasite has a highly reduced mitochondrion and relies on glycolysis, enzymes such as C. parvum malate dehydrogenase (CpMDH), which are believed to be indispensable for parasite viability due to their pivotal roles in NAD⁺ regeneration and redox balance, remain largely unexplored as therapeutic targets. The present study employed a multifaceted experimental and computational strategy to evaluate the inhibitory activity of two lead-like and drug-like small molecules, referred to as compound 1.8 and compound 1.5, against the cofactor …

Students In Motion: How Educators Enact Movement In Elementary Mathematics, Katherine E. Nash

USF Tampa Graduate Theses and Dissertations

This study used an exploratory sequential mixed-methods design to examine how elementary mathematics teachers report using physical activity in their instructional practice. The purpose of the study was to develop, provide evidence of validity, and implement a questionnaire to document the types of movement teachers use and when these practices occur in relation to mathematics instruction. In Phase 1, qualitative interviews were conducted with eight elementary mathematics teachers to identify common movement types and inform instrument development. The eight movement types that were identified are non-academic fine-motor, non-academic gross-motor, non-academic music-elicited, non-academic environmental, academic fine-motor, academic gross-motor, academic music-elicited, and …

Parent Cultural Wealth: How Beliefs, Curriculum Familiarity, And Community Awareness Facilitate Home-Based Cs Conversations, Nicol Howard, Leiny Y. Garcia, Jean Ryoo, Julie Flapan, Michelle Choi, Paula Nazario, Wei Wei

Mathematics, Physics, and Computer Science Faculty Articles and Research

Parents are critical influences on children's computer science (CS) pathways, yet families’ involvement remains understudied. Guided by parental involvement and community cultural wealth frameworks, this work-in-progress examined survey data from 53 parents representing families historically underrepresented in computing within California (71% women; 54% Hispanic/Latin/x/e). Findings revealed that CS school curriculum familiarity and awareness of CS community events significantly predicted parent-child CS conversations, while parent CS confidence and attitudes did not, suggesting that curriculum transparency and community connections can promote equitable involvement. Future work will integrate qualitative interviews to examine how families draw upon their cultural wealth.

Course Portfolio: Elements Of Physics Phys 151, Evan A. Rich

UNL Faculty Course Portfolios

This course portfolio documents the instructional design, teaching methods, and ongoing assessment efforts for PHYS 151: Elements of Physics, an algebra-based introductory physics course at the University of Nebraska-Lincoln. The course serves a broad undergraduate population, including architecture, construction management, and life science majors. The portfolio describes the teaching framework that integrates pre-lecture video preparation, active in-class engagement through iClicker questions, and collaborative weekly recitation sections, all unified around a structured six-step problem-solving approach. A central concern of the course is building students’ self-efficacy in physics, particularly among those with math anxiety or limited preparation. Two assessments are reported: a …

The Effectiveness Of Teaching With Multiple Representations In Acquiring Scientific Concepts And Developing Visual Thinking Skills In Science, Abdullah K. Ambusaidi Prof., Raya A. Al-Yazeedi

International Journal for Research in Education

This research aimed to identify the effectiveness of teaching science using multiple representations in acquiring scientific concepts and developing visual thinking skills among fourth-grade students. The research adopted an experimental approach with a quasi-experimental design, based on a two-group design (experimental and control). The research sample consisted of 121 students, distributed into 61 students in the experimental group and 60 students in the control group. To achieve the research objectives, two instruments were used: a test for acquiring scientific concepts and a test for developing visual thinking skills. The validity and reliability of both instruments were verified using appropriate statistical …