Take and Make: Napier’s Bones Calculator

Paola GarciaCommunity Partnerships, History Connections, Library, Making Math, Math at Home, Mathematical Artifacts, Take and Make, Teacher Support & Training1 Comment

Napier’s Bones are a manually operated calculator created by John Napier in 1612. This calculator is based on Lattice Multiplication and helps math learners with multiplying large numbers by a single digit number.  Math learners! Start identifying multiplication patterns by making your own set of Napier’s Bones! Materials: Napier’s Bones Paper Template: https://tinyurl.com/rh5xdajt Writing utensil (pencil or pen) Popsicle sticks

Take and Make – Voronoi Flipbook

Paola GarciaMaking Math, Math at Home, Sharing Ideas, Take and Make, Ways to like math, We think math is fun!, Zoom FriendlyLeave a Comment

After talking with Minnesota Landscape Arboretum, we began searching for new ideas to interact with Voronoi Diagrams. During our pre-pandemic presentations and events we allowed people to interact with a Voronoi simulation that had been posted on Wikipedia. https://en.wikipedia.org/wiki/File:Voronoi_growth_euclidean.gif While brainstorming we decided to buy a flipbook kit and test out what we could do with them. One of our

Take and Make: Icosahedron from Golden Rectangles

Josephine ShengMaking Math, Math at Home, Sharing Ideas, Take and Make, We think math is fun!, Zoom Friendly2 Comments

We were inspired by a post on Twitter by Olivier Longuet shown below. The object in the photo is an icosahedron, a 20-sided 3D shape, made out of three golden rectangles with side lengths that obey the golden ratio (1:1.618033…). To make a cardboard version of the icosahedron, print out this document and follow the instructions! You can also make

Take and Make: Making a Pool Test Apparatus

Lauren SiegelMaking Math, Sharing Ideas, Take and Make, Teacher Support & Training, Ways to like math, We think math is fun!, Zoom FriendlyLeave a Comment

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

Take and Make: Parallel Ruler and Compass Rose

Lauren SiegelConference Presentations, Making Math, Museum, Take and Make, We think math is fun!Leave a Comment

In 2019, we brought our suite of Navigation Math to New York to share how we relate math to Texas History and the voyage of La Belle which is on exhibit at the Texas State History Museum.  Files to make our version of the Parallel Ruler are here.     Files to make our version of the Compass Rose are here. Participants

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

Lauren SiegelMaking Math, Mathematical Artifacts, Sharing Ideas, Take and Make, We think math is fun!Leave a Comment

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