Protractor Practice-Crack the Code BUNDLED! is the perfect way to give your class that much needed practice reading protractors. In addition to the four separate resources listed below, this bundle also includes an additional puzzle, available here only. 9-2018 Update! The original puzzles now also include a metric measurement option for those of you that are metric measurements only. These fun activities are loaded with mental math and problem solving opportunities, as well as additional extens