Are you ready to move beyond “I do, we do, you do” and build real mathematical thinking in your classroom? This teacher script walks you step-by-step through how to teach the split-up (decomposing) addition strategy using an inquiry-based model that prioritizes reasoning, flexibility, and conceptual understanding over rote procedure. Instead of students copying a method, they discover why the strategy works. Designed by a teacher with a background in Life Sciences and a Bachelor of Education