Cherry Ng
Doctoral Candidate
Department of Mathematics
University of Colorado Boulder
Bachelor of Arts at New York University, 2009
Master of Science at New Jersey Institute of Technology, 2013
Current teaching
none for Spring 2022
Teaching evaluations
A summary of teaching evaluations, plus selected student comments is available as a PDF. (Click to see teaching evaluations)
Selected Materials from Previous Teaching
All materials are made by me except the Active Calc materials, which were made by various contributors and maintained by the Boulder / Omaha Active Learning Alliance
| Calc 3 | • Lecture Notes (large file!) |
| • Graphing Project Rubric | |
| • Graphing Project Results Fall '20 and Spring '21 | |
| • Group Discussion: Partial Derivatives Demo | |
| • Discord Server | |
| • Active Calc 3 Materials (I especially love the gradient activity) | |
| Calc 2 | • Partial flipped class: Assignment and followup quiz |
| • Weekly Quiz 5 and Solutions | |
| • Graphing Projects (Gary the Snail, NASA, Alien Invader, Pretzel Mushroom, Stewie Griffin) | |
| • Desmos: Fun with Polar Graphs | |
| • Desmos: Taylor Series | |
| • Desmos: Parametric Ellipse Exploration | |
| • Active Calc 2 Materials | |
| Calc 1 | • Group problem session: Differentiation Skills |
| • Weekly Quiz 8 and Solutions | |
| • Partial flipped class: Assignment and followup quiz | |
| • Desmos: Derivative Intuition | |
| • Desmos: Area Accumulation Function | |
| • Active Calc 1 Materials (Sketching Snippets is my fave) | |
Research
Interests: algebraic topology, equivariant cohomology, things that make me go "ooh!"
My research is in the area of algebraic topology. My interests include equivariant cohomology and other equivariant phenomena. Currently I am computing the Mackey-functor valued Bredon homology of a point, specifically for the non-abelian group of order 21.
Thesis: Coming soon!
Projects
| 3D Printing Program | A team of graduate students (Carly Matson, Athena Pelfrey, and I) together with faculty supervisor Dr. Faan Tone Liu, were awarded a grant from Arts & Sciences Support of Eduation through Technology (ASSETT) to develop 3D-printed teaching materials and resources for the Math Department. Together with matching funds from the department, we designed and printed activities that are still used by Calculus classes at CU today. Here are some highlights from the adventure! |
We started by printing objects from pre-made models that we found on the internet. This object is an oloid (it rolls funny!)
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We learned to use 3D modeling software to build our own models. (Left) Models for demonstrating how to calculate volumes of solids by taking cross-sections. (Right) Model generated by scanning a person with Xbox Kinect.  
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The early days were full of printer mishaps and quality issues. (Left) This is our spaghetti factory. (Right) The thin rod is severely misprinted at the top. 
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Here are some of the finished products! (Left) Model for demonstrating how to compute volume using the method of washers or method of cylindrical shells. (Right) These yellow solids are part of a project written by Athena Pelfrey. In this project, students practice computing volumes of solids by matching the printed objects with mathematical descriptions. See the associated worksheet here: (Solids of Known Cross Sections Worksheet) 
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| We held a workshop for the department so that anyone could print their own objects! Here's the manual that we produced: (Manual for Printing at CU) | |
Carly Matson and Athena Pelfrey also presented a poster about the outcome this project at the National IBLT Conference 2019. Here's the poster: (IBL Poster)  The project and remaining funds were passed to other graduate students in 2019
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| Graphing with TikZ | Here's a .tex file with several useful methods for graphing with TikZ |
| PDF output and LaTeX code | |
| Algebra Prelim Cards | I wrote a set of flash cards for the Algebra Prelim at CU Boulder. Albany Thompson also made some improvements, and that version is the one shared here. |
| PDF output and LaTeX code |
Contact
E-mail : cherry.ng@colorado.edu Office : Math 364