Grade 1 Overview
Summary of Year
First Grade mathematics is about (1) developing understanding of addition, subtraction, and strategies for addion 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.
Key Areas of Focus for K-2: Addition and subtraction—concepts, skills, and problem solving
Module 5: Identifying, Composing, and Partitioning Shapes
Module 6: Place Value, Comparison, Addition and Subtraction to 100