Elizabeth Lay, Claire Steffen and I had the opportunity to present a webinar through the Texas Historical Commission today. We discussed ways that museums can enhance visitor experiences with math, showed a variety of examples of math activities at museum locations and talked about our process in developing connected activities. Our Presentation Slides are here The Handout Sign up to

…

## Take and Make: Sum of Squares of Odd Numbers – Freese Transformation

This Geometric Transformation shows how the sum of the first 6 Odd Squares is the square of 6, or 36. Its the classic “proof without words”. Freese’s Transformation also shows this relationship, but his “squares” all have sides sqrt 1, sqrt 3, sqrt 5, and so on. Freese Corel File, Adobe Illustrator File, Jpg printable

## Take and Make: Experimental Mathematics Cucumber Edition

Here’s a fun one! Inspired by a conversation with Chris Daniels of Public Math. He said roll paper around a cylinder and cut on an angle to get an ellipse and produce a sine wave. So we did! And you can too. Then you can make a roller from ellipses, reflect your sine curve and roll the elliptical roller along

…

## Take and Make files are spreading! Fantastic!

It is very exciting to see our files being used and the great results! Gotta love the math and maker communities on twitter! Thank you @MathHappensOrg https://t.co/yJ63LBiqJp — Ralph Pantozzi (@mathillustrated) March 13, 2020

## Awesome Math Making Ideas from Other People – Napiers Bones

Here’s an excerpt of a twitter conversation. Day before yesterday Aida wrote to get access to some of our files and ideas. Yesterday she made this amazing version of Napiers Bones that is in the National Archeological Museum in Madrid. Today I’m inspired by her project and want to know more about this version and I want to see that

…

## Women in Steam at the Thinkery

Women in Mathematics! Katherine Johnson calculated trajectories, parabolic and otherwise for NASA in the 1960s. Almost 70 years earlier Mary Boole invented curve stitching to teach the mathematical properties of parabolas to children. We made some really great foldable parabolas to connect to the work of both these women in math. Here’s the laser file – we cut the holes

…

## MathHappens in Nature

We have officially launched our new weekly program at the Austin Nature and Science Center! This program will go from 10am-2pm every Saturday so checkout our Facebook for more information. The room will have rotating puzzles and activities, a shelf full of books for various ages, and something you can make and take home with you! Don’t miss out because

…

## Take and Make: Hinged Parabola Stretcher

Super simple and yet kind of cool. You need a machine screw, a wing nut, some scrap wood about 4″x.5″, and some stretchy elastic. Directions and Files Here. Check the video on Twitter to see how it moves. Article from American Mathematical Association here. Also if you don’t want to make from scratch, we could send you the parts. Fill

…

## Take and Make: Laser cut 3d Tangrams

Viang Shah created his own Corel Draw file to make this design. You are invited to make your own design files or use his which are posted in Corel, AI and SVG formats.

## Mini Unit Circle Twitter Storm!

I sent a mini unit circle to Dr. Alex Kontorovich, and he posted a short video. Previously I posted a video on this and Ralph Pantozzi retweeted and we got 10,000 views till I accidentally deleted the post. This time Dr. Kontorvich’s followers really grabbed it and it went around the globe and in less than 3 days had over

…