Checkmate 1, 2 and 3 cover the National Mathematics Curricula complies with the number of instructional hours for this subject. The various illustrations, diagrams, photographs, and graphs, as well as the content in these books, support the student¿s understanding of the subject.The constructivist methodology of the books, is based on expected learning outcomes; the different activities, sections, and support links included in eachof the texts, maintain this competency-based approach
