Looking for easy how-to instructions to make math games and manipulatives? Here are tutorials using recycled plastic cylinder-shaped containers. Some have a very nice dispenser type lid are are good for storing game pieces too. These containers are made to hold baby wipes and cleaning wipes. The unlidded kind hold frozen concentrated juice. This Earth Day, make these crafts to use for teaching math in interactive hands-on ways. Make Math Materials from Recycled Plastic Containers