Science and Mathematics Education Commons^™

Network Science: Me & My Network. Activity Guide For Facilitators, Worlds Of Connections Sepa

Worlds of Connections Resources

Crosscutting Concept 4. Systems and system models. A system is an organized group of related objects or components; models can be used for understanding and predicting the behavior of systems.

Objective -- Youth will model their social connections as systems related to their identities. Youth will be able to understand the social relationships in their lives as part of social systems related to their identities and model these social systems as ego-networks.

Knowledge-Gap Survey Instrument, Tim Mceldowney, Jessica Deshler, Lynnette Michaluk

Faculty & Staff Scholarship

This is the main research instrument for the NSF funded BCSER-IID: Undergraduate Knowledge of the Mathematics Graduate School Application Process (Knowledge-GAP) project. Award Abstract # 2126018

https://www.nsf.gov/awardsearch/showAward?AWD_ID=2126018&HistoricalAwards=false

The Proof Is In The Pudding – Using Perceived Stress To Measure Short-Term Impact In Initiatives To Enhance Gender Balance In Computing Education, Alina Berry, Sarah Jane Delany

Academic Posters Collection

The problem of gender imbalance in computing higher education has forced academics and professionals to implement a wide range of initiatives. Many initiatives use recruitment or retention numbers as their most obvious evidence of impact. This type of evidence of impact is, however, more resource heavy to obtain, as well as often requires a longitudinal approach. There are many shorter term initiatives that use other ways to measure their success.

First, this poster presents with a review of existing evaluation measures in interventions to recruit and retain women in computing education across the board. Three main groups of evaluation come …

A Phenomenological Study Of Science Teachers’ Lived Experience: Pedagogical Judgment During The Covid-19 Pandemic, Amy Vo

Electronic Theses and Dissertations

At the beginning of the COVID-19 pandemic, in March of 2020, education in the United States changed dramatically. Science teachers began to look at the implementation of ambitious and equitable science teaching practices differently. Employing the hermeneutic phenomenological framework, the purpose of this study was to investigate the lived experience of science teachers, specifically looking at their pedagogical judgment related to ambitious and equitable science teaching. Semi-structured interviews, artifacts and surveys were used to develop a rich description of the phenomenon. Data analysis of the science teachers’ narratives, Qualtrics surveys, and lesson plans illuminated six essential themes common to all …

Elementary Preservice Math Teachers’ Evolving Dispositions Throughout A Math Methods Course: A Mixed Methods Study, Christine E. Hood

Electronic Theses and Dissertations

This study aimed to understand graduate-level Elementary Preservice Teachers’ (EPST) mathematical dispositions before, during, and after a graduate elementary math methods course taught through a rehumanizing (Gutiérrez, 2018), ambitious and equitable math (Horn & Garner, 2022) teaching framework. In this study, EPSTs’ dispositions included four constructs: math anxiety, math teaching anxiety, math self-efficacy, and math teacher self-efficacy. To fully understand the nuance and complexity of teacher education and EPSTs’ mathematical dispositions, I looked at both the EPSTs' and the instructors' perspectives. I investigated EPSTs’ dispositions through a modified multi-methods, sequential, and phenomenological lens. For the instructors’ perspectives, I conducted a …

Network Science: Core Concepts

Worlds of Connections Resources

Visualization, interdependence, position, and scope are core themes for using network models to analyze systems. A network 1) is a set of relationships, 2) shows how things are connected, and 3) reveals hidden information.

Network Science: Hoop Network. Activity Guide For Facilitators, Worlds Of Connections Sepa

Worlds of Connections Resources

Crosscutting Concept 4. Systems and system models. A system is an organized group of related objects or components; models can be used for understanding and predicting the behavior of systems.

Objective: Youth will demonstrate how parts of a network are interdependent.

This guide is designed to give activity leaders the core themes for using network models to analyze systems. The basic network ideas and skills in this activity can be used in numerous career paths to study patterns of behavior and reveal hidden connections. Sociologists, computer scientists, biologists, anthropologists, engineers, neuroscientists, and many others can use network science in their …

Network Science: String Network. Activity Guide For Facilitators, Worlds Of Connections Sepa

Worlds of Connections Resources

Crosscutting Concept 4. Systems and system models. A system is an organized group of related objects or components; models can be used for understanding and predicting the behavior of systems.

Youth will understand and demonstrate the importance of building and recognizing connections in a community. They will make a network model that reveals connections that may seem invisible until youth trace them. Youth will learn about the concept of ‘six degrees of separation/small worlds’ (i.e., how we may be connected to people far away through our friends’ friends).

Introduction To The Special Issue On Immunology, Colby Tofel-Grehl, Brooke A. Whitworth

Publications

The COVID-19 pandemic laid bare the absence of needed resources for teachers to engage students in learning about infectious disease as both a socioscientific issue and a scientific phenomenon (Kafai et al. 2022). With infectious disease largely absent from the NGSS, teachers had to creatively link lessons that contextualized and examined key aspects of infectious disease education during the COVID-19 pandemic. We saw in real time the impacts of popular news, social media, and public mood on broader socioscientific behaviors such as vaccination, masking, and social distancing. We watched as people’s understanding of the nature of science (Lederman 2013) …

Computer Science Outreach To Inform Secondary School Students’ Perceptions Of Computer Science: Preliminary Findings, Karen Nolan, Roisin Faherty, Keith Quille, Keith Nolan, Amanda O'Farrell, Brett A. Becker

Academic Posters Collection

This poster describes a longitudinal K-12 outreach programme to promote Computer Science in Ireland, which ran over a three-year period from 2017- 2020. A pilot phase was conducted in the first year from 2017-2018 with 2900 students participating. The implementation phase began in 2018, when 7320 students participated across the 2018-2019 and 2019-2020 academic years. The programme consisted of a free onsite school delivery of a two-hour camp that introduced students to a range of Computing topics: addressing computing perceptions, introduction to coding, and exploration of computational thinking. Schools self-selected, and the programme reached a large number of schools with …

Nebraska Tractor Test: 2266 John Deere 9rx 640, 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 #1273: Case Ih Optum 340 Cvx, 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 …

Unpacking Chemistry Teachers’ Pedagogical Reasoning And Decisions For A Phet Simulation: A Tpack Perspective, Xiaoyang Gong, Bing Wei, Bradley W. Bergey, Ebony Terrell Shockley

Publications and Research

Computer simulations hold great potential for enhancing chemistry instruction. However, effectively integrating simulations in instruction depends in part on teachers’ pedagogical reasoning about simulation affordances and instructional decisions within specific classroom contexts. The objective of this study was to investigate how two chemistry teachers evaluated an interactive simulation and determined pedagogical strategies for integrating the simulation into classroom instruction. Based on the TPACK framework, authors adopted a comparative case study approach to interpret qualitative data from three sources: screen-capture videos, interviews, and instructional plans. Results showed that pedagogical reasoning and decisions of the two participants reflected different TPACK components. One …

Actividad 4: Reduzca La Velocidad, Se Aproximan Curvas, Patrick Young

Tema 2: Por la ciudad

Diseñar una carretera conlleva tomar muchas decisiones. En un mundo ideal, todas las carreteras tendrían una superficie plana y recta. Lamentablemente, no es así porque las carreteras tienen muchos desvíos, intersecciones, numerosos automóviles transitando y semáforos. Los ingenieros eligen la velocidad máxima de la carretera en función de las características de equilibrio del terreno, el tráfico, los obstáculos existentes y, lo que es más importante, la seguridad.

El objetivo principal de una carretera es asegurarse de que los vehículos puedan maniobrar a una velocidad determinada de forma segura. Por ejemplo, no verá un límite de velocidad de 60 millas por …

Actividad 2: Solo De Paso, Patrick Young

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

Los pasos para animales para la fauna silvestre son cada vez más frecuentes. Su objetivo es proporcionar un camino seguro para que los animales crucen las barreras hechas por el hombre, en este caso las carreteras. Las escaleras para peces, patentadas en 1837, son un ejemplo temprano de este tipo de intervención. Además, los pasos proporcionan a los animales el acceso a los recursos del otro lado de la barrera. Los pasos ayudan a conectar los hábitats para evitar la fragmentación de los mismos, lo que puede restringir el acervo genético y dar lugar a poblaciones más bajas y en …

Activity 5: Slow Down, Curves Ahead, David Hernandez, Peg Steffen

Theme 2: Around Town

Highway curves are banked so the outside edge of the roadway is elevated above the inside edge. This provides additional centripetal force to keep the car on the road and following the proper path. The faster a car is moving, the more banking it will need.

Activity 3: Warning!, Elizabeth Martinez

Theme 5: Why Did the Chicken Cross the Road?

More factors than previously mentioned must be considered in the design of an animal crossing structure, such as temperature, precipitation, vehicle traffic, noise, and vehicle exhaust. Consideration of these environmental factors and events will require modifications to the original design. This is a common practice in engineering. The original design might go through several revisions as modeling, testing, and experience reveal the need for modifications.

An Exploratory Constructivist Grounded Theory Study: How Secondary School Science Teachers Interpret Students’ Scientific Models That Are Comprised Of Drawing Activities, Alecia M. Redway

Selected Full Text Dissertations, 2011-

Extant literature lacks an explanation of the thought processes used by secondary school science teachers to interpret students’ scientific models that are comprised of drawing activities. In this exploratory study, a constructivist grounded theory (CGT) was developed to generate an interpretive understanding. The CGT was generated from observations, interviews, and document analyses of five research participants consisting of secondary school science teachers from lower New York State. To generate a CGT, concepts, terms, assumptions, and definitions from selected theories—decolonizing methodologies theory (DMT), visual semiotic theory (VST), and cultural studies theory (CST)—collectively provided a fresh onto-epistemological lens for initially examining and …

Actividad 4: Prueba De Las Cubiertas De Hormigón Fabricadas Por Los Estudiantes, Patrick Young

Tema 1: Estructura y proceso

Cuando una viga estructural se carga desde arriba, la fuerza crea compresión en la superficie superior y tensión en la superficie inferior. El hormigón puede soportar la compresión diez veces más que la tensión. Como el hormigón tiene menos capacidad para soportar la tensión, el refuerzo de acero es más importante en la parte inferior.

En esta actividad, los estudiantes realizarán una prueba de carga en 3 puntos para ver cuánto peso pueden soportar sus losas.

Actividad 3: Curva Pronunciada, Patrick Young

Tema 2: Por la ciudad

La forma de una curva afecta la facilidad con la que un automóvil puede circular con seguridad por ella. Las colisiones son más probables cuando la curva es demasiado cerrada. La curva debe ser suave, la transición entre los tramos rectos y curvos de la carretera también deben ser suaves.

En la imagen anterior, el automóvil experimenta una fuerza (llamada “fuerza centrípeta”) que lo empuja hacia el centro del círculo. Se trata de una fuerza de fricción proporcionada por la carretera que actúa sobre los neumáticos. Cuanto más cerrada es la curva, más fricción se necesita para mantenerse en la …

Activity 1: Build It Strong!, Patrick Young

Theme 1: Structure and Process

Materials like concrete and steel are important components of highway construction, but so are management tools such as planning and scheduling. This theme, Structure and Process, attempts to integrate these components using the construction of a highway overpass as an example. Activities should be done in the order presented. The concrete made in Activity 1 will need two days to cure before being tested in Activity 4.

Activity 1: Adela Valley Highway, Patrick Young, David Hernandez

Theme 2: Around Town

If you ask a longtime resident of your neighborhood what the town was like 30 or 40 years ago, they will tell you that there were a lot of empty spaces or fields. Ask them if they are happy with the numerous homes, businesses, roads, and industries that now exist. They may say that they lost part of their community. At the same time, they gained jobs, property value, and infrastructure improvements.

Whether to build more roads through a town is not an easy decision. There has to be a clear implementation plan, local or state funding, city code agreement, …

Activity 2: Cost Analysis, Patrick Young, David Hernandez

Theme 2: Around Town

The unit cost of highway construction varies tremendously, but state departments of transportation often publish estimates. For this activity, we assume that a four-lane divided highway will cost $5 million per mile across flat farmland.

Activity 3: Navigation, Patrick Young, David Hernandez

Theme 2: Around Town

Highways of the future will be more than ribbons of concrete and asphalt. They will have an information infrastructure that includes sensors, computers, and wireless connection with the computers in every moving vehicle. In the same way that people are connected by the internet, vehicles will be connected with each other through the highway’s network. This will enable drivers using navigation software to get real-time updates and suggestions. It will also increase the safety and efficiency of driverless vehicles.

In this activity, students will use mathematics to examine the types of calculations that navigational computers use to redirect drivers to …

Activity 2: Anger Management, David Hernandez, Peg Steffen

Theme 3: Traffic Management

Road rage is anger caused by inconveniences, incidents, or irresponsibility while driving. It can result in yelling, honking, tailgating, weaving, and blocking traffic. Road rage fatalities are increasing but there are strategies to help lessen road rage. These include overhead signs warning of upcoming traffic, weather, and car or truck incidents. Traffic and travel apps, which offer various route suggestions, travel times, and road hazards, may help as well. This activity will examine personal behaviors that drivers should exhibit to reduce road rage and then asks students to consider strategies to reduce this growing issue.

Activity 4: Information Board, David Hernandez, Peg Steffen

Theme 3: Traffic Management

In 1969, the National Household Travel Survey (NHTS) began collecting data about Americans’ travel habits. During the survey period, each household was sent a travel diary and asked to report all travel by household members on a randomly assigned “travel day”. Data were weighted to correctly reflect the day of week and month of travel to allow comparisons of weekdays or seasons. The type of transportation used, length and distance of trips and the purpose of travel are some examples of data gathered through the surveys. Organizations such as insurance companies, transportation agencies, and the government analyze and use the …

Activity 2: A Little Bit Salty, Karen Ye

Theme 4: Please Pass the Salt

Density is defined as the amount of mass that takes up a certain amount of volume. Adding salt or sugar to water increases its density since there are more particles (mass) packed into a similar amount of space (volume). Cooling water can also increase its density since the particles move more slowly at lower temperatures and will be more packed together. When two substances with different densities are combined, the one with a lower density will float whereas the one with a higher density will sink. The greater the difference in density, the more distinct the layers and the harder …

Activity 1: A Day In The Life, Patrick Young

Theme 5: Why Did the Chicken Cross the Road?

All highways run through animal habitats. Fencing highways can provide drivers some protection from animal-related accidents, but they fragment the habitat, causing problems for wildlife. In this activity, students learn some of the reasons that animals will attempt to cross highways.

Activity 2: Just Passing Through, Elizabeth Martinez

Theme 5: Why Did the Chicken Cross the Road?

Animal passages for wildlife are becoming more prevalent. Their purpose is to provide a safe path for animals to cross man-made barriers, in this case roadways. Fish ladders, patented in 1837, are an early example of this type of intervention. In addition, passages provide animal access to resources on the other side of the barrier. Crossings help to connect habitats to avoid habitat fragmentation, which can restrict the gene pool resulting in lower and more at-risk populations, as well as potential extinction. Vehicle and wildlife collisions account for many injuries and deaths for humans and other animals, property damage, and …

E2: Equity And Excellence Framework, Adrienne Coleman, Traci Ellis

Publications & Research

Both the United States and the United Nations have identified, examined, and put out a call to action to address the educational inequities that have disproportionately and negatively affected racially minoritized students, as well as those from a lower socioeconomic background, and poorer countries. Data from the Nations Report Card and the Global Monitoring Report provide evidence of disparities in academic performance and access to equitable educational resources. The outcome of these inequities impacts countries throughout the world, as their residents will not possess the skills and knowledge to thrive in a rapidly evolving global society, nor possess the critical …