Week#4 - flexagons - Oct 11, 2017 2:37:5 PM
Week #3 - magic squares - Oct 02, 2017 6:58:24 PM
Week #2 - grouping and reordering - Sep 21, 2017 8:17:16 AM
Week #1 - Mobius strips - Sep 17, 2017 6:31:19 PM
Welcome - Sep 17, 2017 6:4:44 PM