Singapore Math: Grade1 Primary Math Textbook 1A (US Edition)

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, Book 1A teaches students numbers 0-10, addition, subtraction, naming number positions, counting, common shapes, comparing and measuring length and weight.