First+Grade+Math+Instructional+Guide

Operations & Algebraic Thinking OA-Represent & Solve problems-Addition and Subtraction OA-Understand & apply properties of operations & the relationship between addition & subtraction OA-Add and subtract within 20 OA-Work with addition & subtraction equations

Number & Operations in Base Ten NBT-Extend the counting sequence NBT-Understand place value NBT-Use place value understanding & properties of operations to add & subtract

Measurement & Data MD-Represent & interpret data MD-Tell & write time MD-Measure lengths indirectly & by iterating length units

Geometry G-Reason with shapes & their attributes