This posting focuses on the CCSS (Common Core State Standard)First Grade Standard:
Represent and solve problems involving addition and subtraction.
CCSS.Math.Content.1.OA.A.1 Use 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.
This entire posting has practice problems and assessments for CCSS1.01.A1. These practice sheets can be copied, displayed on a white/Promethean Board, put in a small center for students to complete, or placed in a child’s math journal. There is a month’s listing of daily practice items for review and extention prior to giving the assessments. There are two assessments to administer to determine each student’s achievement of this standard after the use of the practice problems. It is always the best to begin at the conceptual level with manipulatives and practice prior to beginning the work with the algorithm in the practice problems. Once the students have the concept, these practice problems and assessments would be the next step. Use the language of the problems and practice these type problems in small guided math groups or in full group instruction.
While this focuses on the first grade standard, it is also a great enrichment and extension for kindergarten and a remediation and practice for second grade.