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 41-60 of 471 results.
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ID:
306
Year: 2011
Name: Martha Ellen Waggoner
Institution: Simpson College
Subject area(s):
Title of Talk: Discovery learning in linear algebra using dynamical geometry software.
Abstract: I have developed several Geometers Sketchpad sketches that students can use to help them understand transformations, eigenvalues, eigenvectors and a geometrical interpretation of the determinant. These dynamic sketches are used in discovery learning exercises in a computer classroom. In this talk I will demonstrate a couple of sketches and explain how they are used in the classroom.
Year: 2011
Name: Martha Ellen Waggoner
Institution: Simpson College
Subject area(s):
Title of Talk: Discovery learning in linear algebra using dynamical geometry software.
Abstract: I have developed several Geometers Sketchpad sketches that students can use to help them understand transformations, eigenvalues, eigenvectors and a geometrical interpretation of the determinant. These dynamic sketches are used in discovery learning exercises in a computer classroom. In this talk I will demonstrate a couple of sketches and explain how they are used in the classroom.
ID:
235
Year: 2008
Name: Martha Waggoner
Institution: Simpson College
Subject area(s):
Title of Talk: Geometer's Sketchpad and Undergraduate Research
Abstract: We were able to purchase 12 student copies of Geometer's Sketchpad to be used by our pre-service teachers for their undergraduate research projects through a faculty development grant from the Simpson academic dean's office. In this talk, we will look at the variety of topics in geometry and computer aided design that our students worked on and how Geometer's Sketchpad helped the students in visualization, conjecture and proof.
Year: 2008
Name: Martha Waggoner
Institution: Simpson College
Subject area(s):
Title of Talk: Geometer's Sketchpad and Undergraduate Research
Abstract: We were able to purchase 12 student copies of Geometer's Sketchpad to be used by our pre-service teachers for their undergraduate research projects through a faculty development grant from the Simpson academic dean's office. In this talk, we will look at the variety of topics in geometry and computer aided design that our students worked on and how Geometer's Sketchpad helped the students in visualization, conjecture and proof.
ID:
148
Year: 2006
Name: Alfredo Villanueva
Institution: University of Iowa
Subject area(s): Differential Geometry
Title of Talk: Prolongations on a Riemannian Manifold
Abstract: Traditionally the method of prolongations is carry out by algebraic manipulations which become very complex, especially in cases of partial differential equations on curved spaces, here we are applying some results from representation theory and differential operators to have a systematic method that allow us to close some overdetermined systems on a Riemannian manifold.
Year: 2006
Name: Alfredo Villanueva
Institution: University of Iowa
Subject area(s): Differential Geometry
Title of Talk: Prolongations on a Riemannian Manifold
Abstract: Traditionally the method of prolongations is carry out by algebraic manipulations which become very complex, especially in cases of partial differential equations on curved spaces, here we are applying some results from representation theory and differential operators to have a systematic method that allow us to close some overdetermined systems on a Riemannian manifold.
ID:
386
Year: 2014
Name: Victor Vega
Institution: College of Coastal Georgia
Subject area(s): Topology, Geometry
Title of Talk: Fractals: A Basic Introduction
Abstract: We present a basic introduction to fractals by looking and understand the concept of Hausdorff dimension and Topological dimension by looking at simple examples of classic fractals and geometric constructs. We also define the Julia set and Mandelbrot set as an iterative function on the complex plane and present some examples together with some historical remarks.
Year: 2014
Name: Victor Vega
Institution: College of Coastal Georgia
Subject area(s): Topology, Geometry
Title of Talk: Fractals: A Basic Introduction
Abstract: We present a basic introduction to fractals by looking and understand the concept of Hausdorff dimension and Topological dimension by looking at simple examples of classic fractals and geometric constructs. We also define the Julia set and Mandelbrot set as an iterative function on the complex plane and present some examples together with some historical remarks.
ID:
512
Year: 2018
Name: Katherine Vance
Institution: Simpson College
Subject area(s):
Title of Talk: Sine, Cosine, and Euler
Abstract: In mid-September, I attended a training workshop for the TRIUMPHS project. The goal of the project is to develop materials to teach core mathematical content using primary historical sources and active learning techniques. At the end of September, I site-tested one of the TRIUMPHS Primary Source Projects, ``The Derivatives of the Sine and Cosine Functions," in my Calculus 1 class. I will give a little bit of background on the TRIUMPHS project and share my experience as a site tester.
Year: 2018
Name: Katherine Vance
Institution: Simpson College
Subject area(s):
Title of Talk: Sine, Cosine, and Euler
Abstract: In mid-September, I attended a training workshop for the TRIUMPHS project. The goal of the project is to develop materials to teach core mathematical content using primary historical sources and active learning techniques. At the end of September, I site-tested one of the TRIUMPHS Primary Source Projects, ``The Derivatives of the Sine and Cosine Functions," in my Calculus 1 class. I will give a little bit of background on the TRIUMPHS project and share my experience as a site tester.
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.
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:
134
Year: 2005
Name: Calvin Van Niewaal
Institution: Coe College
Subject area(s): roundtable
Title of Talk: MAA Strategic Planning
Abstract: One of the issues that has been targeted for the first round of the MAA
Year: 2005
Name: Calvin Van Niewaal
Institution: Coe College
Subject area(s): roundtable
Title of Talk: MAA Strategic Planning
Abstract: One of the issues that has been targeted for the first round of the MAA
ID:
451
Year: 2016
Name: Samuel Van Fleet
Institution: Wartburg College
Subject area(s): Linear Algebra, Wavelets
Title of Talk: In-Place Computation of the Discrete Haar Wavelet Transformation.
Abstract: This method uses Huffman coding assisted by a wavelet filter to compress image files to a smaller size. The background math is linear algebra and there is some computer programming involved. JPEG uses a form of this math with their image files as well as the FBI for images of their fingerprints.
Year: 2016
Name: Samuel Van Fleet
Institution: Wartburg College
Subject area(s): Linear Algebra, Wavelets
Title of Talk: In-Place Computation of the Discrete Haar Wavelet Transformation.
Abstract: This method uses Huffman coding assisted by a wavelet filter to compress image files to a smaller size. The background math is linear algebra and there is some computer programming involved. JPEG uses a form of this math with their image files as well as the FBI for images of their fingerprints.
ID:
569
Year: 2021
Name: fpkonknrz uuEDLRaXwRxj
Institution: PiZiaywrPvCbUWk
Subject area(s): dyhNGEhkRvX
Title of Talk: PrnGztILsXtiHZgrG
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Year: 2021
Name: fpkonknrz uuEDLRaXwRxj
Institution: PiZiaywrPvCbUWk
Subject area(s): dyhNGEhkRvX
Title of Talk: PrnGztILsXtiHZgrG
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ID:
558
Year: 2021
Name: mpazkvt ubUxGrQpZHbbYZv
Institution: icImzteiWthAdt
Subject area(s): QZAaMIFgkRreqn
Title of Talk: iNgEWUcEePPq
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Year: 2021
Name: mpazkvt ubUxGrQpZHbbYZv
Institution: icImzteiWthAdt
Subject area(s): QZAaMIFgkRreqn
Title of Talk: iNgEWUcEePPq
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ID:
381
Year: 2014
Name: Robert Todd
Institution: University of Nebraska at Omaha
Subject area(s): knot theory, undergraduate research
Title of Talk: Khovanov Homology: An undergraduate research project
Abstract: Khovanov homology is a sophisticated construction in knot theory, a branch of mathematics which is foreign and mysterious to many undergraduates. However, with only some linear algebra, some computer skills, and a little maturity as prerequisites, Khovanov homology can be used as a context to introduce many important mathematical ideas. I will discuss an on-going undergraduate research project whose goal is to compute the Khovanov homology of some families of knots. Such computations have only been performed for a handful of examples, thus our results will be of interest to researchers in the field. There will be many pictures and examples.
Year: 2014
Name: Robert Todd
Institution: University of Nebraska at Omaha
Subject area(s): knot theory, undergraduate research
Title of Talk: Khovanov Homology: An undergraduate research project
Abstract: Khovanov homology is a sophisticated construction in knot theory, a branch of mathematics which is foreign and mysterious to many undergraduates. However, with only some linear algebra, some computer skills, and a little maturity as prerequisites, Khovanov homology can be used as a context to introduce many important mathematical ideas. I will discuss an on-going undergraduate research project whose goal is to compute the Khovanov homology of some families of knots. Such computations have only been performed for a handful of examples, thus our results will be of interest to researchers in the field. There will be many pictures and examples.
ID:
175
Year: 2006
Name: Jim Tattersall
Institution: Providence College
Subject area(s): History of Mathematics
Title of Talk: Episodes in The Early History of The Lucasian Chair
Abstract: In 1663, Henry Lucas, the long-time secretary to the Chancellor of the University of Cambridge, made a bequest, subsequently granted by Charles II, to endow a chair in mathematics. A number of conditions were attached to the Chair. Among the more prominent Lucasian professors were Newton, Babbage, Stokes, Dirac, and Hawking. We focus attention on the early Lucasians. Many of whom were very diligent in carrying out their Lucasian responsibilities but as history has shown such was not always the case. In the process, we uncover several untold stories and some interesting mathematics
Year: 2006
Name: Jim Tattersall
Institution: Providence College
Subject area(s): History of Mathematics
Title of Talk: Episodes in The Early History of The Lucasian Chair
Abstract: In 1663, Henry Lucas, the long-time secretary to the Chancellor of the University of Cambridge, made a bequest, subsequently granted by Charles II, to endow a chair in mathematics. A number of conditions were attached to the Chair. Among the more prominent Lucasian professors were Newton, Babbage, Stokes, Dirac, and Hawking. We focus attention on the early Lucasians. Many of whom were very diligent in carrying out their Lucasian responsibilities but as history has shown such was not always the case. In the process, we uncover several untold stories and some interesting mathematics
ID:
176
Year: 2006
Name: Jim Tattersall
Institution: Providence College
Subject area(s): History of Mathematics
Title of Talk: Vignettes in Number Theory
Abstract: Properties and the history of several numbers that lend themselves naturally to undergraduate research projects will be discussed. Topics include Demlo numbers, polite numbers, sad numbers, decimal Columbian numbers, Smith numbers, and Niven numbers.
Year: 2006
Name: Jim Tattersall
Institution: Providence College
Subject area(s): History of Mathematics
Title of Talk: Vignettes in Number Theory
Abstract: Properties and the history of several numbers that lend themselves naturally to undergraduate research projects will be discussed. Topics include Demlo numbers, polite numbers, sad numbers, decimal Columbian numbers, Smith numbers, and Niven numbers.
ID:
508
Year: 2018
Name: Ross Sweet
Institution: Simpson College
Subject area(s): math education, online learning
Title of Talk: Facilitating Peer Feedback in an Online Course
Abstract: When adapting a face-to-face course to an online format, many of our usual course activities are difficult to implement. In an introductory quantitative reasoning course, writing assignments with peer feedback were an essential part of the face-to-face course. When adapting this course to an online version, keeping the spirit of these assignments was a primary goal. An online question and answer platform, Piazza, was used for asynchronous peer feedback on writing assignments for the online version. In this context, we will discuss some benefits and drawbacks of this format and tool along with future refinements.
Year: 2018
Name: Ross Sweet
Institution: Simpson College
Subject area(s): math education, online learning
Title of Talk: Facilitating Peer Feedback in an Online Course
Abstract: When adapting a face-to-face course to an online format, many of our usual course activities are difficult to implement. In an introductory quantitative reasoning course, writing assignments with peer feedback were an essential part of the face-to-face course. When adapting this course to an online version, keeping the spirit of these assignments was a primary goal. An online question and answer platform, Piazza, was used for asynchronous peer feedback on writing assignments for the online version. In this context, we will discuss some benefits and drawbacks of this format and tool along with future refinements.
ID:
431
Year: 2015
Name: Francis Su
Institution: Harvey Mudd College
Subject area(s):
Title of Talk: Voting in Agreeable Societies
Abstract: When does a majority exist in a voting situation? How does the geometry of the political spectrum influence the outcome? What does mathematics have to say about how people behave? When mathematical objects have a social interpretation, the associated results have social applications. We will show how math can be used to model people's preferences and understand voting in "agreeable" societies. This talk also features research with undergraduates.
Year: 2015
Name: Francis Su
Institution: Harvey Mudd College
Subject area(s):
Title of Talk: Voting in Agreeable Societies
Abstract: When does a majority exist in a voting situation? How does the geometry of the political spectrum influence the outcome? What does mathematics have to say about how people behave? When mathematical objects have a social interpretation, the associated results have social applications. We will show how math can be used to model people's preferences and understand voting in "agreeable" societies. This talk also features research with undergraduates.
ID:
375
Year: 2013
Name: Wartburg Students
Institution: Wartburg College
Subject area(s):
Title of Talk: Survivor X
Abstract: Based on CBS’s widely-seen show Survivor, the math capstone class project Survivor X will incorporate mini math challenges in search of a final victor. Participants will be split into teams competing together for immunity. Eventually the teams will be merged and the game will turn to an individual competition. But watch out for those voted out, they will decide who is to be given the title of sole mathematical survivor.
Year: 2013
Name: Wartburg Students
Institution: Wartburg College
Subject area(s):
Title of Talk: Survivor X
Abstract: Based on CBS’s widely-seen show Survivor, the math capstone class project Survivor X will incorporate mini math challenges in search of a final victor. Participants will be split into teams competing together for immunity. Eventually the teams will be merged and the game will turn to an individual competition. But watch out for those voted out, they will decide who is to be given the title of sole mathematical survivor.
ID:
278
Year: 2010
Name: K Stroyan
Institution: University of Iowa
Subject area(s):
Title of Talk: Projects in Calculus Class
Abstract: My favorite calculus question is: Why did we eradicate polio by vaccination, but not measles? I use this as a training project for student projects in calculus. I'll talk about my experience with "modeling" projects in calculus.
Year: 2010
Name: K Stroyan
Institution: University of Iowa
Subject area(s):
Title of Talk: Projects in Calculus Class
Abstract: My favorite calculus question is: Why did we eradicate polio by vaccination, but not measles? I use this as a training project for student projects in calculus. I'll talk about my experience with "modeling" projects in calculus.
ID:
131
Year: 2005
Name: K Stroyan
Institution: University of Iowa
Subject area(s): Trig and basic calculus
Title of Talk: Retinal disparity via computer
Abstract: The horizontal separation of our eyes causes the image each eye receives to fall on a slightly different portion of the retina. This difference is called "retinal disparity" and has been studied extensively for its relation to depth perception. (This kind of depth perception is called stereopsis. Helmholtz' book in 1910 is an old "standard" reference to this) Recently a psychologist friend mentioned that he was studying how retinal disparity changes as a driver views two objects off to the side of the road. He also mentioned that most of his colleagues are "math-o-phobic" and used rather coarse approximations to retinal disparity. I wrote a Mathematica animation to show the motion of the eyes of a driver and compute the time derivative of retinal disparity. We corresponded sending graphs via email until I had a start at what interests the scientists. The math is simple vector geometry with some arc tangents, but it is a little messy, so I didn't immediately look at the formulas. When I did, I had a surprise. And I believe the surprise means we could train better users of mathematics if we worked towards better integration of modern computing in basic math. We hope to build a web-Mathematica site for psychologists to use for their computations.
Year: 2005
Name: K Stroyan
Institution: University of Iowa
Subject area(s): Trig and basic calculus
Title of Talk: Retinal disparity via computer
Abstract: The horizontal separation of our eyes causes the image each eye receives to fall on a slightly different portion of the retina. This difference is called "retinal disparity" and has been studied extensively for its relation to depth perception. (This kind of depth perception is called stereopsis. Helmholtz' book in 1910 is an old "standard" reference to this) Recently a psychologist friend mentioned that he was studying how retinal disparity changes as a driver views two objects off to the side of the road. He also mentioned that most of his colleagues are "math-o-phobic" and used rather coarse approximations to retinal disparity. I wrote a Mathematica animation to show the motion of the eyes of a driver and compute the time derivative of retinal disparity. We corresponded sending graphs via email until I had a start at what interests the scientists. The math is simple vector geometry with some arc tangents, but it is a little messy, so I didn't immediately look at the formulas. When I did, I had a surprise. And I believe the surprise means we could train better users of mathematics if we worked towards better integration of modern computing in basic math. We hope to build a web-Mathematica site for psychologists to use for their computations.
ID:
437
Year: 2016
Name: Keith Stroyan
Institution: University of Iowa
Subject area(s): Vector Calculus
Title of Talk: Advanced Calculus using Mathematica
Abstract: Advanced Calculus using Mathematica is a complete text on calculus of several variables written in Mathematica NoteBooks. The eText has large movable figures and interactive programs to illustrate things like “zooming in” to see “local linearity.” In addition to lots of traditional style exercises, the eText also has sections on computing with Mathematica. We will discuss some of the novel features of the text including the explicit, implicit, parametric organization and topics often omitted from "regular" texts (like "vector potentials.") We use the text in a second semester multivariable calculus course and a more advanced course.
Year: 2016
Name: Keith Stroyan
Institution: University of Iowa
Subject area(s): Vector Calculus
Title of Talk: Advanced Calculus using Mathematica
Abstract: Advanced Calculus using Mathematica is a complete text on calculus of several variables written in Mathematica NoteBooks. The eText has large movable figures and interactive programs to illustrate things like “zooming in” to see “local linearity.” In addition to lots of traditional style exercises, the eText also has sections on computing with Mathematica. We will discuss some of the novel features of the text including the explicit, implicit, parametric organization and topics often omitted from "regular" texts (like "vector potentials.") We use the text in a second semester multivariable calculus course and a more advanced course.
ID:
222
Year: 2008
Name: K Stroyan
Institution: University of Iowa
Subject area(s): Trig, Calculus, and Vision
Title of Talk: A new formula for depth perception
Abstract: When you are moving, such as walking, and fix your gaze at an object ahead, but off to the side, say a tree, stationary objects behind the tree seem to move in the same direction as you, while objects in front seem to move in the opposite direction. This is a monocular cue to depth, as opposed to binocular disparity - the difference in the images in your two (separated) eyes. Working with a vision researcher, we have found a simple new formula for depth in terms of motion. Work is in progress in his laboratory to see how much of the geometric information contained in the formula is actually used by humans. The proof of the formula is a very simple application of trigonometry and infinitesimal calculus. We were led to discover it through experimental intuition and some interactive programs that we will demonstrate.
Year: 2008
Name: K Stroyan
Institution: University of Iowa
Subject area(s): Trig, Calculus, and Vision
Title of Talk: A new formula for depth perception
Abstract: When you are moving, such as walking, and fix your gaze at an object ahead, but off to the side, say a tree, stationary objects behind the tree seem to move in the same direction as you, while objects in front seem to move in the opposite direction. This is a monocular cue to depth, as opposed to binocular disparity - the difference in the images in your two (separated) eyes. Working with a vision researcher, we have found a simple new formula for depth in terms of motion. Work is in progress in his laboratory to see how much of the geometric information contained in the formula is actually used by humans. The proof of the formula is a very simple application of trigonometry and infinitesimal calculus. We were led to discover it through experimental intuition and some interactive programs that we will demonstrate.