3.3 Wrapping Up Addition and Subtraction Within 1,000 · Lesson 21: Classroom Supplies (optional)Lesson plan
Learning goals: Teacher Facing Add and subtract within 1,000 to solve real-world problems. Round whole numbers to the nearest ten or hundred to solve problems. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 3.3 Wrapping Up Addition and Subtraction Within 1,000, Grade 3.