[Blindmath] Pascal's Triangle in Braille?

[Alexa Schriempf]

Dear Listers:

Today I made a Braille version of Pascal's triangle for a student. Needless
to say, because I could not adjust the font size of the Braille, and
because our paper is 11 inches wide, I had some issues with recreating it
with Duxbury and our embosser.

Pascal's Triangle is a very specific pattern of numbers, and the
orientation of the numbers is carefully placed in a honeycomb pattern. To
make 4 digit numbers fit in the honeycomb slot of the same size that holds
a 1 digit number, typical images of Pascal's triangle simply use a smaller
font size. This does not work when using Braille of course.

I tried to put this in a table, but the table cells need to be staggered.
In the end, I I simply printed out each row and cut the rows into strips,
taped the strips together where needed, and then glued the whole thing to
cardboard.

However, while this will work for understanding some of the basics, it
won't help where it's necessary to see how the numbers align physically on
the paper because the inability to change the size and spacing of Braille
dots means that I can't fit a four digit number to fit underneath a 2 digit
number.

Surely, this learning object must already exist in Braille someplace?
Please advise.

Thank you so much!
Alexa
-- 
Alexa Schriempf, Access Tech Consultant
Office for Disability Services
Teaching and Learning with Technology: Accessibility Group
Adaptive Technology Services, University Libraries
Penn State
https://sites.psu.edu/aschriempf/
http://equity.psu.edu/ods
http://tlt.its.psu.edu/
http://www.libraries.psu.edu/psul/adaptivetechnologies.html