Singapore Math's Primary Math, U.S. Edition series features the Concrete> Pictorial> Abstract approach. Students begin by learning through concrete and pictorial means before moving into abstract thought and development, which encourages an active thinking process, communication of mathematical ideas and problem solving. Lessons are designed for a mix of teacher instruction and independent work, and students are encouraged to discuss ideas and explore additional problem-solving methods.
Primary Math 2B, US Edition teaches mental addition and subtraction, multiplying and division by 4, 5, and 10, money (US currency), fractions, time, capacity, geometry and area.