How to Create Our Interlocking Tetrahedra Logo

Share on facebook Facebook Share on twitter Twitter A tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of 4 triangular faces, 6 straight edges, and 4 vertex corners (vertices). Our newsletter logo is made of 5 interlocking tetrahedra. Each is shown in a different color and is made from 6 strips of paper …

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Polygons & prejudice 2.0

Reflections from Anne: In 2016, Tara T. Craig (University of Texas) and I adapted Vi Hart and Nicky Case’s “Parable of the Polygons” (2014) for a Math Teachers’ Circle activity to consider the dynamics of a polygon neighborhood. In the neighborhood, polygons preferred having neighbors who were like them. Triangles enjoyed having other Triangles as neighbors, …

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Family Fun: Achi!

This article was originally published in the Summer Math Mind Stretchers, Issue #1 by the AIMC (Alliance of Indigenous Math Circles).  Achi is a game played by the Ashanti people of Ghana in West Africa. This two-player game is played on a three-by-three diagram of horizontal and vertical lines and two diagonals. Achi is like tic-tac-toe, …

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Bubbling Cauldrons

Bubbling Cauldrons: Bring Out your Inner Alchemist! For this activity, you will need the following materials: counters with numbers 1-30 on them, and 3 cauldron cutouts (you can print out this worksheet if you’d like).  Starting with just 2 cauldrons, place the counters into the cauldrons in ascending order – you can choose which cauldron each …

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