Dear readers, this set of "Knowledge Collection" series presented to you is written by super teachers and senior teachers with rich teaching experience. This set of books is divided into three volumes: Chinese, Mathematics and English.

We adhere to the writing characteristics of "integrity, systematicness, depth and carefulness", and conduct various researches according to the changes of current textbooks and the changing trend of quizzes, so that this set of books not only matches the knowledge points, but also has novel examples and questions, which is conducive to students' understanding and mastery of subject knowledge.

This series has the following characteristics:

First, the textbooks are novel: based on the new textbooks and new educational and teaching concepts, the ideas, contents and textbooks are all new. The author tries to extract the corresponding ability requirements from the knowledge content of curriculum standards, explain the key knowledge in depth and carefully, and illustrate the difficulties with examples. Using this series of books can effectively improve students' learning effect.

Second, comprehensive knowledge: including all the knowledge points of all subjects in primary schools can help students sort out the key points of knowledge, clarify the context of knowledge and consolidate the learning foundation.