## Take and Make: Making a Pool Test Apparatus

You don’t need robots and computers, just a system and apparatus to organize the steps! This model is based on the results alluded too but not completely explained by an Israeli company in the recent NY Times article by David Halbfinger on creative pool testing options.   https://www.nytimes.com/2020/08/21/health/fast-coronavirus-testing-israel.html Trying to come up with one of these is a great activity for

## Webinar: Making the Most of Math Connections at your Museum or Historical Site

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  Recording Hosted by

## Proud to be a Sponsor….

MathHappens Foundation is proud to have an opportunity to be a sponsor for the webinar series being offered by the Julia Robinson Mathematics Festival.  The educators at JRMF have done a great job adapting the festival format to zoom.  Its really great!  Sessions are offered in English and Spanish at times that can work for participants across the globe.

## Take and Make: Proof without Words Sum of Odd Numbers – Freese Transformation

This Geometric Transformation  shows how the sum of the first 6 consecutive odd numbers is the square of 6, or 36.  It’s the classic “proof without words”.  Freese’s Transformation also shows this relationship, but his “squares” 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