| 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!
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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)
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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
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PDF output and LaTeX code |
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| 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. |
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PDF output and LaTeX code |