Learn how to use the balance scale on Polypad! 0:33 - Defining values of algebra tiles 2:41 - Solving equations 6:10 - Defining values of polygons and imported images 9:21 - Using mathematical expressions on the balance scale 12:47 - Using dice, playing cards, and other tiles on the balance scale Polypad is the world's most comprehensive and intuitive collection of virtual manipulatives, and is completely free to use. Try them out at https://polypad.org/. For more tutorials and resources, including free lesson plans, visit https://mathigon.org/learn Polypad and Mathigon are part of Amplify. Visit https://amplify.com/ to learn more.