1.3 Adding and Subtracting Within 20 · Lesson 18: Patterns in AdditionLesson plan
Learning goals: Teacher Facing Look for and use patterns in addition expressions to add within 20. Make a ten to find the sum of two numbers within 20. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 1.3 Adding and Subtracting Within 20, Grade 1.