This is a good supplementary series for reteaching students who need additional guidance. The books emphasize the pictorial stage and helping students to move from the pictorial stage to the abstract or contextual stage.
To promote critical and creative thinking in Mathematics, this series is designed to help make thinking visible by providing pupils with opportunities to think, explore and reflect on the reasoning behind mathematical concepts and skills. Through these exercises, it aims to provide pupils with a qualitative understanding of concepts to help build their problem-solving and thinking skills. Parallel examples and questions are included to highlight the differences betweens similar problems to allow pupils to focus on concepts and skills.
This is a good book for re-teaching students who need additional guidance. It emphasises the pictorial stage and helps students to move from the pictorial stage to the abstract or contextual stage. It is appropriate for remedial students, weaker students as it bridges the gap of OnSponge. However, there are also challenging PSLE Math word problems.