Math GCCS values depth in mathematical thinking and problem solving over superficial exposure to a series of fragmented topics. Math Home > Curriculum > Math Illustrative Mathematics Illustrative Math is a newly developed, problem-based curriculum designed to meet the diverse needs of all learners. Students will learn mathematical concepts through real-world contexts and they will learn to explain their thinking through discussion with their peers and teachers. The Illustrative Mathematics Curriculum helps teachers facilitate student learning through high-leverage routines and tangible math tools, which can help students make connections between mathematical concepts and computation procedures. When possible and appropriate, mathematics is woven into classroom Expedition content. Students hone their mathematical skills by analyzing social or scientific data and building scale models of local structures and the natural world.