For our #BuildACastle entry, we tried to make a sand castle mold that, as the instructions say, shows off math skills at the beach! Made with the program Tinkercad, this sand castle includes geometric patterns using 3D shapes to give the castle a real pop. In addition, we specially created cool tessellations for the castle’s floor and tower top to add some flare and showcase how beautiful math can be. We hope you like our #BuildACastle mold and make sure to check out our fun video about Techno and his story of how he taught people about math with our mold. This mold is truly a mathe-magical sand head turner at the beach! - my little brother http://youtu.be/IqfaH-ykKyc