1st Grade Math

Grade 1 Math focuses on four critical areas: (1) developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; (2) developing understanding of whole number relationships and place value, including grouping in tens and ones; (3) developing understanding of linear measurement and measuring lengths as iterating length units; and (4) reasoning about attributes of, and composing and decomposing geometric shapes. Students develop strategies for adding and subtracting whole numbers based on their prior work with small numbers; develop, discuss, and use efficient, accurate, and generalizable methods to add within 100 and subtract multiples of 10; develop an understanding of the meaning and processes of measurement; and compose and decompose plane or solid figures as they build understanding of part-whole relationships as well as the properties of the original and composite shapes.