This micro-credential will allow you to explore how the progression of elementary mathematics concepts leads to the introduction of proportional reasoning. You will also learn how to solve ratio and proportion problems and how to select appropriate strategies when teaching ratio and proportion problems. The intended audience for this micro-credential is all Upper Elementary and Middle Grades Math Teachers, and the difficulty is high. This micro-credential is grounded in research from the What Works Clearinghouse (WWC) Practice Guide: Improving Mathematical Problem Solving in Grades 4 through 8.