新加坡Marshall Cavendish出版社的Visible Think in Mathematics，比课本难度稍高，低于奥数，属于课内提高，很适合小朋友平时刷题训练。现发布1-6全套共11本（6年级只有1本）
designed to help pupils think aloud,visible thinking in mathematics provides pupils with opportunities to explore and reflect .when pupils are conscious about their thoughts and how they learnt concepts and skills ,they cultivate the good habit of checking their work throughly and ensure an accurate response .this series .
hones pupils critical and creative thinking skills through functional questions in thinking routines .
helps pupils understand ,and retain concepts and skills better ,this is done by highlighting to them ,
1.differences between similarly phrased questions of ,
2,mathematical problems with same context but different keywords .provides pupils with relevant practices for reinforement and consolidation of what they have learnt .
