## Take and Make: Reuleaux Car

The Reuleaux Car The pieces are below, and an AI, SVG, and Corel File are available here.  The file has a laser etch on the big wheel to guide the placement of the smaller piece.  Glue two small pieces to one side and two large ones on the other side.  The wheel holders work by sliding so you can install

## Take and Make: Mini Unit Circle

We made a little video of the mini unit circle with Radian piece and it got some interest on our twitter feed.  We tidied up and updated the file as much as possible and have three versions available: link to SVG Mini Unit Circle File link to Adobe Illustrated Mini Unit Circle File link to Corel Draw 2017 file version

## Take and Make: Number Slider

This is a great project.  Viyang Shah shows how you can expand from just adding and subtracting.  Here are the files – Corel Version 17, Adobe Illustrated, and an SVG!  Please let us know if you have trouble with access.  Happy Making! First version by Paola Garcia.  Improvements and Cuisenairre adaptations based on suggestions from Jo Boalers facebook group YouCube

## MakerFaire Austin 2019- Featuring 3 Women Mathematicians

We had displays on Karen Uhlenbenk, Mary Boole, and Marjorie Rice.  Some people wanted to see a Voronoi pattern in a dragonfly wing, others designed and colored Marjorie Rice’s Pentagon # 13 and others were fascinated by Mary Boole’s Curve Stitching.

## What are tessellations?

What are tessellations? A repeating pattern of shapes that goes on forever without any gaps or overlaps. You can think of tiling a floor. Squares, triangles and hexagons are all shapes that tessellate. Mathematician Marjorie Rice discovered some very interesting polygons that tile. It is fun to color and move around all kinds of geometric shapes! See how these squares

## Enthusiasm for Math at the Austin Central Library Kids Block Party!

Lauren Siegel1 Comment

If you ever wondered if families, adults, kids, teens would be interested in some math on a Saturday, this should answer your question.  We brought Tessellations, and in particular some designed with Marjorie Rice’s discoveries and we also featured Lewis Carroll’s puzzles, tangrams and cipher codes.  MH team:  Kyla Kalugdan, Josephine Sheng and Lauren Siegel, and special thanks to our

Mike Bailey of the Brazoria County Historical Museum provided us this photo.  He is using our model Gunner’s Quadrant with a cannon there at the Museum.   We based our model on the one seen above in an article on Nicholas Tartaglia, the inventor of ballistics. https://www.famousscientists.org/niccolo-tartaglia/

## Nature Day at the Austin Nature and Science Center

Theme:  Get Outside! We did some survival math, sunlight tracking and compass rose designs.   You can find a straight line from West to East if you track the shadow of a stick and mark its top over time.  Then you can find North and South and relate that to a compass rose on a map and find your way.

## Tessellations! Gilbert Elementary Science Day

Lauren Siegel1 Comment

Josephine Sheng, Paola Garcia and Cassandra Gonzalez at Science Day Tessellation puzzles are a great way to spend some time with some regular and irregular polygons and as a group make some beautiful puzzles.  These are going to stay at Gilbert Elementary in the library. And we got a nice note from the principal: Thank you so much for sending

## MathHappens @ the Thinkery with Marjorie Rice Tessellating Pentagons

Lauren Siegel1 Comment

Favorite quote:  “Oh my gosh! I can feel my brain working”. We had a great time at the Thinkery’s Community Spotlight:  Women in STEAM.  Thanks to Halle Herzog, Kyla Kalugden and Cassandra Gonzalez.  We featured the irregular pentagon tilings and artistic butterfly stylings of Marjorie Rice. Marjorie Rice found 4 of the remaining 6 types that were still unidentified in