Quick Stations and Centers for Common Core Level: First grade Common Core Standard ccss.math.content.1.oa.a.1 Using addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. Introduction These stations are designed for quick set up and use as a specific station or center. They can be used as additional material or differentiated instruction. You may make additional copies of these materials as needed. Station A