Crack the Angles Code. Hands on manipulative to visualize angles. You can use this tool while measuring angles with a protractor so students can visualize angles or play with encoding and decoding secret messages. It's a great activity for the First Days of School, Back to School, Summer Camp, Summer School, or End of the Year Math & Art Activity.You can also use it as an outdoor activity to encode directions or tasks.There are no messages to decode. There is only a cipher decoder. You can u