Fractal Tree by Deborah Simple Geometry by Gerrie Change by Helen
What Were the Odds? by Kirsten Counting on my fingers by Terry Color Counts by Diane
Seven by twelve by Francoise A Malthusian Quilt by Kristin By the Numbers by Karen
Binary Note by Brenda First Grade by Terri Transcendental Curve by Nikki

Color Counts

by Diane

My working abacus is made out of felted wool beads, bamboo skewers, balsa wood and fabric. I wondered whether the piece is too "assembled" for this challenge but decided that there was lots of sewing involved. The result not only represents mathematics in terms of the abacus itself, but making the piece involved calculations to make it all fit together. More details in my blogpost.
Color Counts by Diane
Click to enlarge