1, The zy Course of Mingxin Mathematics edited by Liu Jia, published by Hubei Education Press, is the best teaching material for Olympic Mathematics in primary schools at present. It is edited by Liu Jia, a training institution in Wuhan Mingxin, and plans to publish eight volumes and four volumes. Now three volumes have been published: Volume II (2007) and Volume III (2007). The biggest advantages of the book zy Course of Ming Xin Mathematics are as follows: ① The mathematical latitude and longitude in front of each lecture is very lively and interesting, with a large amount of information; ② The solving process of each example is very detailed, which is very suitable for parents to help students and students to learn by themselves. In addition, it is also helpful for new teachers' teaching. Moreover, some examples are followed by the introduction of the knowledge background of the examples (such are often famous questions in the history of mathematics), and there are different expressions of the examples (equivalent to variants), which can play the role of giving inferences; (3) After each lecture, some exercises correspond to the previous examples, so that students can recall the solution ideas of the previous examples when doing the exercises, which is not only a review of the previous examples, but also an inspiration to the exercises (in fact, most Olympic mathematics textbooks do this, such as the RH school mathematics textbook, the Olympic mathematics course to be introduced later, and of course the handout on learning and thinking). The biggest drawback of the zy Course of Ming Xin Mathematics is that it is published too slowly ~ it is said that there will be eight volumes, and only three volumes and four books have been published so far.

This is my answer at the cost of doing my homework! The landlord must give points!