Instruction will promote mathematical processes/thinking, as detailed in the Standards for Mathematical Practice as well as content standards for Operations and Algebraic Thinking, Number and Operations in Base Ten, Measurement and Data, and Geometry. Specifications for study within the grade level are detailed in the Maryland College and Career Ready Standards. Skills and concepts will include but are not limited to developing understandings of addition and subtraction and strategies for basic addition facts and related subtraction facts, developing an understanding of whole number relationships and place value, including grouping in tens and ones, developing and understanding linear measurement, and reasoning about attributes of, and composing and decomposing geometric shapes.