The Primary Mathematics U.S. Edition series of elementary math textbooks and workbooks is meant to be part of a system of learning in which adult supervision and independent practice go hand in hand. The main feature of this series is the use of the Concrete, Pictorial, Abstract approach. The students are provided with the necessary learning experiences beginning with the concrete and pictorial stages, followed by the abstract stage to enable them to learn mathematics meaningfully. This approach encourages active thinking process, communication of mathematical ideas and problem solving. This helps develop the foundation students will need for more advanced mathematics. Practice exercises are designed to provide the students with further practice after they have done the relevant workbook exercises. Review exercises are provided for cumulative reviews of concepts and skills. All the practice exercises and review exercises are optional exercises. The color patch is used to invite active participation from the students and to facilitate oral discussion. The students are advised not to write on the color patches.
This book encourages students to learn mental calculations as they improve on their addition and subtraction. The subjects covered include: metric length, metric weight, metric volumes, graphs, fractions, time, angles in geometry, area, and perimeter.