In third grade, we use Bridges in Mathematics, second edition, which fully implements the Common Core State Standards in a manner that is rigorous, coherent, engaging, and accessible to all learners. The curriculum focuses on developing students' deep understandings of mathematical concepts, proficiency with key skills, and ability to solve complex and novel problems. Bridges blends direct instruction, structured investigation, and open exploration. The program taps into the intelligence strengths of all students by presenting material that is as linguistically, visually, and kinesthetically rich as it is mathematically powerful.