In this 1.OA.4 First Grade Common Core Lesson, students practice finding the missing added using subtraction as strategy to solve.
In this 1.OA.5 First Grade Common Core Lesson, students will practice counting backward from 10 using a number line.
In this 1.OA.7 First Grade Common Core Lesson, students will decide given equations are true or false to understand the meaning of the equal sign.
In this 1.NBT.6 First Grade Common Core Lesson, students will practice subtracting 10 from a given number using a number line.
In this 1.OA.8 First Grade Common Core Lesson, students find the unknown whole number in addition equations up to 20.




