Probability and Patterns Worksheets and Study Guide including determining the likelihood of an event, representing probability as a number, creating models or practical problems to represent probability, and patterns found in objects, pictures, numbers, and tables. Correlated with 2016 VA SOL 4.13 and 4.15 and CCSS 4.OA.C.5 and 7.SPC.5. The calculator symbol indicates that the problems in this unit will appear on the section of the Grade 4 Virginia SOL Math test that allows a calculator. I