This flip chart is a great resource for teaching how to add two 2-digit numbers using the partial-sums algorithm. This flip chart has the following components:
Lesson Introduction with link to video
Teacher Modeling a Problem (step-by-step directions for teacher to follow)
Guided Practice (step-by-step directions to help with guidance)
Independent Practice (worksheet included and answer key)
Homework Practice (worksheet included and answer key)
This flip chart can also be used for 1st grade.