Home‎ > ‎

### Math

Our Class Math Calendar Board

 1st Marking Period 2nd Marking Period 3rd Marking Period 4th Marking Period Kindergarten Standards First Grade Math CCSS Common Core State Standards 2nd Grade Standards

 Measurement & Data (MD) Operations & Algebraic Thinking (OA) Number & Operations in Base Ten (NBT) Geometry (G) Measure lengths indirectly and by iterating length units Tell and write time Represent and interpret data Represent and solve problems involving addition and subtraction Understand and apply properties of operations and the relationship between addition and subtraction Add and subtract within 20 Work with addition and subtraction equations Extend the counting sequence Understand place value 1.NBT.B.2 1.NBT.B.2a Use place value understanding and properties of operations to add and subtract Reason with shapes and their attributes

 + Addition Key Words - Subtraction Key Words plus minus add take away increased by decreased by more less total of difference of combined, together difference between sum difference added to taken from count up count back How many? How many more? How many altogether? How many less/fewer? Sum: Answer to an addition problem Difference: Answer to a subtraction problem Equals = is, are, was, were, will be gives, yields, sold for