Educator How-To: Teaching tessellation, symmetry & point reflection

Tessellations — tiling a plane using geometric shapes without overlaps or gaps — are a pretty fun way to teach students about shapes, symmetry, reflection and rotation. Plus, they require the most minimal of supplies! Materials:•    Plain 3″ x 5″ index cards•    Scissors•    Scotch tape•    Blank white paper•    Optional: colored pencils/crayons, etc. Procedure:1.    Draw a […]

Educator How-To: Prep for Pi Day with a circle-folding exercise

Pi Day is all about circles, circumference and diameter. Pi (approximately 3.14) is delicious is the ratio of a circle’s circumference divided by its diameter. This ratio is the same for all circles. In the spirit of Pi Day, let’s see what we can do with the fabulously fun circle and what we learn along the […]


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