What if your students could explain why a strategy works instead of simply remembering the steps? In this course, you'll explore how students develop multiplicative reasoning through meaningful problem solving, visual models, mathematical discussions, and productive struggle. Along the way, you'll learn practical strategies for analyzing student thinking, facilitating rich math conversations, and using classroom-ready routines, lessons, and resources that help students build flexible computation skills, deepen conceptual understanding, and grow into confident mathematicians in grades 3–5.