Third Grade math in New Hampshire schools focuses on strengthening arithmetic skills and introducing more complex mathematical concepts. Students work on mastering addition and subtraction within 1,000 and delve deeper into multiplication and division, including memorizing multiplication tables. They explore fractions and begin to understand the concept of equivalent fractions. Measurement skills are enhanced through activities involving time, volume, and mass. Students also study geometry, learning to classify shapes based on their properties. Lessons are designed to foster analytical thinking and problem-solving, aligning with state standards to support comprehensive mathematical development.