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Topic: Math Spoken, Drawn, and Folded
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Registered: 6/9/17
Math Spoken, Drawn, and Folded
Posted: Jun 9, 2017 9:38 AM
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June 9, 2017 Vol. 22, No. 23


EquatIO | Drawing with Mathpix | Polyhedron Templates



Have you ever wanted to display perfectly typeset mathematics
just by speaking symbols and numbers?

With a nifty extension running in a Chrome browser, you can:
EquatIO renders the mathematics that you dictate (or type or
write) on your computer or Chromebook.

Watch it in action here:

Then check out how EquatIO can enhance the use of exit tickets
in the classroom, and four other classroom applications for it:

Creators Texthelp developed this browser extension out of
g(Math), a product more limited in scope. The free version of
EquatIO lets you add its speech-to-text and other output to
Google Docs. The premium version offers unlimited handwriting
recognition, plus integration with Google Forms, Slides,
Sheets, and Drawings.


PoW taking place: Math problem-solving moment of the week

"While I was doing this problem, I realized that you always
have to look before you start just to make sure all units are
the same, and if they aren't you need to convert them to one
common unit. My answer is reasonable because ..."

- Shell, highlighted in the Pre-Algebra PoW's latest solution



The makers of Mathpix recently posted the results of "some
fun" they had with their API and HTML canvas.

Mathpix is the "snap, solve, graph and go" app first
highlighted here in December. It instantly digitizes
photographs of handwritten math taken on a smartphone, then
simplifies or solves it step by step, with relevant lessons
along the way.

This latest experiment with Mathpix's optical character
recognition technology typesets the math that you write in the
graph-paper region of their new drawing interface. Click the
"copy to clipboard" button to capture the LaTeX code for that
formatted output.


Now taking place: Math education conversation of the day

"Trickier to work out -- which might be why the question....
The distance from the vertices of a sqrt(2), sqrt(2), sqrt(2)
triangle to its center is (scribble, scribble) sqrt(2/3)....
More could be said, but that's a start."

- Jim, posted to the sci.math discussion



A website recently launched for interactively designing
polyhedron models.

Build your own net by choosing from among the five Platonic
solids (tetrahedron, hexahedron, octahedron, dodecahedron,
icosahedron), or using the lighter blue "advanced" button to
specify its dimensions and the number of sides. Polyhedron
Templates lets you truncate the resulting model as often as
you like. To print out and fold up the your model, pick the
tab types and sizes that you'd glue. The "data" link leads to
a table of the edge length and vertex angle of every face of
your 3D creation.

We first learned about Polyhedron Templates as a suggestion to
the Internet Math Library, which today boasts over 11,100 math
and math education websites. Share your own by visiting



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