Proposals

Below are some proposals for talks from the past (and current). By clicking on the ID number, more details are shown. By default, these are sorted chronologically (recent first) and by then by last name. The data can be sorted by alternate means by using the links at the top right, each allowing ascending or descending orders.

Displaying 21-40 of 471 results.
ID: 574
Year: 2021
Name: Sergio Loch
Institution: Grand View University
Subject area(s):
Title of Talk: Initial Report on work about Math Transition

Abstract: Approaching existing issues for the high school to college transition requires the collaboration of the players involved in this transition: students, parents, teachers, instructors, counselors, and all their institutions and professional organizations. IHEMTAC is attempting to develop and propose ideas in the crucial area of mathematics to facilitate this interaction.
ID: 526
Year: 2019
Name: O'Neill Kingston
Institution: Iowa State University
Subject area(s): Representation theory
Title of Talk: Jeux de taquin

Abstract: Or, in English, the 15 puzzle(s). From integer partitions to algebraic structures, in this talk we explore a classic combinatorial technique and a few of its applications.
ID: 527
Year: 2019
Name: Hongyuan Zhang
Institution: Grinnell College
Subject area(s): applied topology
Title of Talk: Artworks and Articles Meet Mapper and Persistent Homology

Abstract: Since its recent birth, topological data analysis (TDA) has proven to be a very useful tool when studying large and high-dimensional data sets. We will talk about the application of two TDA tools, persistent homology and the Mapper algorithm, to the Metropolitan Museum of Art (MET) artwork data set and two scholarly literature databases: arXiv and Google Scholar. For the MET data, we use the Mapper Algorithm to guide feature selection in building a logistic regression model for classifying certain artworks. Then we use persistent homology to help differentiate between two subsets of artwork. For the arXiv data, we use persistent homology to derive a general sense of the shape of the data. With help of the Mapper Algorithm, we further explore the point cloud by analyzing trends and features in visualizations. For the Google Scholar data, we find that there are interesting correlations between academic category of the paper and number of pages, number of references, and published date.
ID: 528
Year: 2019
Name: Amanda Matson
Institution: Clarke University
Subject area(s):
Title of Talk: MAAthfest Roundup

Abstract: Dr. Matson will be sharing tips and tricks picked up at MAA's Mathfest. Come listen to what was gained and share your own ideas.
ID: 529
Year: 2019
Name: Mitchel Keller
Institution: Morningside College
Subject area(s): calculus, grading, assessment, feedback
Title of Talk: Standards-based Specifications Grading in First-Year Calculus

Abstract: After growing frustrated with the challenges of traditional, points-based grading in my calculus courses, I implemented a model I describe as standards-based specifications grading in my Calculus II class in Spring 2019 and my Calculus I class in Fall 2019. This model allows students repeated opportunities to demonstrate proficiency on critical aspects of the course and expects completely correct student work. Students are also given a choice of other assignments to do beyond test-type questions in order to earn their desired course grade. In this talk, I will give a brief overview of my experience and share some student feedback on this successful project.
ID: 530
Year: 2019
Name: Brian Birgen
Institution: Wartburg College
Subject area(s):
Title of Talk: Undergraduate Mathematics Research for the Masses

Abstract: At Wartburg College, like many liberal arts colleges, all math majors are required to complete a capstone course with a research component. However, research means different things at different places and not all students are advanced enough for rigorous independent research. How can one provide a mathematical research experience to an entire class that challenges the best students without leaving behind the weaker students? I will present my solution to this question and promise to leave enough time at the end for other people to share their suggestions.
ID: 531
Year: 2019
Name: Alvaro Carbonero
Institution: University of Nevada, Las Vegas
Subject area(s): Discrete Geometry
Title of Talk: Exploring Preference Orderings Through Discrete Geometry

Abstract: Consider $n + 1$ points in the plane: a set $S$ consisting of $n$ points along with a distinguished vantage point $v$. By measuring the distance from $v$ to each of the points in $S$, we generate a preference ordering of $S$. This work is motivated by a voting theory application, where an ordering corresponds to a preference list. The maximum number of orderings possible is given by a fourth-degree polynomial (related to Stirling numbers of the first kind), found by Good and Tideman (1977), while the minimum is given by a linear function. We investigate intermediate numbers of orderings achievable by special configurations $S$. We also consider this problem for points on the sphere, where our results are similar to what we found for the plane. A variant of the problem that uses two vantage points is also developed.
ID: 532
Year: 2019
Name: Michael Rieck
Institution: Drake University
Subject area(s): Elliptic curves, algebraic geometry, projective geometry
Title of Talk: Elliptic Curves and the Perspective 3-Point Problem

Abstract: The Perspective-Three-Point Problem (P3P), a camera tracking problem, is solved by first focusing on determining the directions of the lines through pairs of control points, relative to the camera, rather than the distances from the camera to the control points. The analysis of this produces an efficient, accurate and reasonably simple P3P solver, which has been compared with a state-of-the-art P3P solver. However, the principal value of the present work is not in introducing yet another P3P solver, but lies rather in the discovery of an intimate connection between the P3P problem and a special family of elliptic curves that includes curves utilized in cryptography. This holds the potential for further advances in a number of directions. To make this connection, an interesting spherical analogue of an ancient “sliding” problem is stated and solved.
ID: 533
Year: 2019
Name: Lorenzo Riva
Institution: Creighton University
Subject area(s): Analysis, PDEs
Title of Talk: Low Regularity Non-$L^2(\mathbb{R}^n)$ Local Solutions to the gMHD-$\alpha$ system

Abstract: The Magneto-Hydrodynamic (MHD) system of equations governs viscous fluids subject to a magnetic field and is derived via a coupling of the Navier-Stokes equations and Maxwell's equations. It has recently become common to study generalizations of fluids-based differential equations. Here we consider the generalized Magneto-Hydrodynamic alpha (gMHD-$\alpha$) system, which differs from the original MHD system by the presence of additional non-linear terms (indexed by the choice of $\alpha$) and replacing the Laplace operators in the equations by more general Fourier multipliers with symbols of the form $-\vert \xi \vert^\gamma / g(\vert \xi \vert)$. In \cite{penn1}, the author considered the problem with initial data in Sobolev spaces of the form $H^{s,2}(\mathbb{R}^n)$ with $n \geq 3$. Here we consider the problem with initial data in $H^{s,p}(\mathbb{R}^n)$ with $n \geq 3$ and $p > 2$, with the goal of minimizing the regularity required to obtain unique existence results.
ID: 536
Year: 2019
Name: Mariah Birgen
Institution: Wartburg College
Subject area(s): Applied Mathematics
Title of Talk: Caucus Mathematics

Abstract: Welcome to Iowa. One of the best sources for cool, applied math problems comes from the Iowa Democratic Caucuses. Of course, every four years the Democratic Party fiddles with the rules. I will talk about ranked elections, viability, and apportionment. The last portion of the talk will discuss some of this year’s rule changes and how they affect the calculations.
ID: 537
Year: 2019
Name: Mariah Birgen
Institution: Wartburg College
Subject area(s): Recreational Mathematics
Title of Talk: Sioux Center Julia Robinson Mathematics Festival

Abstract: Julia Robinson Mathematics Festival supports locally organized events that inspire K - 12 students to think critically and to explore the richness and beauty of mathematics through collaborative, creative problem-solving. Our Festivals engage many types of students, including those who don’t enjoy competition or working under time pressure. A Festival is also a community event, bringing together institutions and organizations as their constituents celebrate mathematics.
ID: 538
Year: 2019
Name: William Lindsey
Institution: Dordt University
Subject area(s):
Title of Talk: Epidemic! Role-Playing in Introductory Statistics

Abstract: How can we use our statistical knowledge to help save (or at least, inform) the world? I will describe a day from my Introductory Statistics class where students were "hired" by the CDC to help answer questions about a fictional epidemic that was plaguing the Atlanta area.
ID: 539
Year: 2019
Name: Theron Hitchman
Institution: University of Northern Iowa
Subject area(s):
Title of Talk: Report from the MAA Congress

Abstract: I will share information from the MAA congress meeting at the most recent MathFest.
ID: 540
Year: 2019
Name: Katherine Vance
Institution: Simpson College
Subject area(s): Topology; Knot Theory; Statistics
Title of Talk: Random Grid Diagrams

Abstract: This is joint work with undergraduate students Max Folkers, Eli Marriott, and Miguel Sanchez. We look at the distribution of the number of components in the population of knots and links represented by grid diagrams. We write programs in the R programming language to generate random samples of grid diagrams. We analyze the number of components and splittability of the links in these samples using statistical methods to gain a better understanding of the population of grid diagrams and the knots and links they represent.
ID: 541
Year: 2019
Name: Christina Pospisil
Institution: University of Massachusetts Boston
Subject area(s):
Title of Talk: Generalization Theory for Linear Algebra I: An Embedding Algorithm and an appropriate Inverse for non-injective mappings in one dimension

Abstract: An algorithm for multiplying and adding matrices regardless of dimensions via an embedding is presented. An equivalent embedding for a general determinant theory is also investigated (Part I: Appropriate Inverses for non-injective mappings in one dimension are presented). In future work there will be applications to physics and other natural sciences be explored.
ID: 542
Year: 2019
Name: Michael Loper
Institution: University of Minnesota
Subject area(s):
Title of Talk: Combating Math Anxiety Through Mastery Based Testing

Abstract: Math anxiety is a major deterrent to learning in College Algebra. One way to reduce test anxiety is through mastery based testing. Another way is by aiming for a higher average exam score by eliminating the most difficult questions on an exam. In this talk I will discuss how the University of Minnesota implemented both of these techniques while instructing College Algebra. I will also explain how the use of optional “A-work” helped to distinguish top scoring students’ grades.
ID: 543
Year: 2019
Name: Valorie Zonnefeld
Institution: Dordt University
Subject area(s): Pedagogy of Mathematics
Title of Talk: Classroom Environments that Nurture a Growth Mindset

Abstract: Carol Dweck and Jo Boaler's landmark research regarding the importance of a growth mindset for learning and specifically mathematics is a game changer for professors and teachers. Learn what a growth mindset is and how to foster it in your classroom.
ID: 545
Year: 2019
Name: Eric Hart
Institution: Grand View University
Subject area(s):
Title of Talk: Developmental Mathematics and the Transitions from High School to College to Career

Abstract: So-called developmental mathematics courses have become a significant barrier to students' timely and successful completion of college. Too many students are placed into these courses, the failure rate is high, and there is too much overlap with secondary school courses. These courses have not been successful in their traditional role of remediating students’ algebra skills, they are often redundant with respect to the high school courses and tests students have taken, and they are not “developmental” in that they have not been successful in aligning with students’ needs in their chosen career paths or in developing skills for quantitative literacy in the modern world. An examination of the problem of developmental mathematics leads inevitably to a consideration of the broader context of transitions into and out of post-secondary education, as captured by two pressing questions: Are high school students college ready? Are college students career ready? There are three logical components of this broad context of college and career readiness: Mathematics transition from high school to college College developmental/remedial/QR mathematics courses Preparation for adult life, work, career After outlining some recommendations and references for each of these components, we will take up the challenge of designing a "robust" college developmental mathematics course.
ID: 546
Year: 2019
Name: Melanie King
Institution: The University of Iowa
Subject area(s): Math Education
Title of Talk: Introducing College Algebra Students to the IBL Learning Style

Abstract: Learning driven by student curiosity is more difficult in a setting such as College Algebra, where students typically have lower moral for learning math effectively. The purpose of this talk is to propose a general guideline for understanding the problems of students in College Algebra and address these problems using some IBL techniques. Here are some noted problems framed as student responses: "I hate/am not good at math”, “Can I cancel these?”, "I don't know how to start this", and "This problem wasn't on the homework/practice quiz, so I didn't know how to do it on the quiz/test". I will suggest learning techniques to help students tap into their curiosities without relying solely on teacher intervention to solve problems as is true to the IBL style of learning. I will also discuss some intermediary results of implementing some strategies in a blackboard section of College Algebra in Fall 2019 at the University of Iowa.
ID: 547
Year: 2019
Name: Patrick Rault
Institution: University of Nebraska at Omaha
Subject area(s):
Title of Talk: A Dozen National and Regional Mini-grant opportunities for Undergraduate Faculty

Abstract: A wide range of mini-grants are available to support both teaching and research. The Inquiry-Based Learning Iowa-Nebraska Community (IBLINC) is now offering mini-grants for a wide range of peer-collaboration activities ranging from attending events to collaborating on course materials. This builds on a national momentum to offer mini-grants from the MAA for a wide variety of teaching activities, from CURM for an academic-year REU-style project with our students, and from AIM for a weeklong research retreat for your faculty team. While most of these programs are grant funded, the MAA’s Project NExT program has raised substantial continuing funds to provide professional development and a supportive community for new faculty. Join us to hear about a dozen such funding sources, learn what the aforementioned acronyms stand for, or share your own experiences.