The arrangement principle of official document teaching materials is to let students get the maximum learning effect in the shortest time; At the same time, considering the absolute proportion of calculation in high school mathematics, the official documents broke through the school syllabus and carefully arranged a set of mathematics textbooks step by step to help students achieve the goal of "self-study, self-study to high school textbooks".

The official document mathematics textbook spans the whole stage from kindergarten to university, from simple marking exercises to advanced mathematics. Because the official document adopts a small step-by-step learning method, the whole teaching material is subdivided into multiple stages, so as to narrow the gap between learning stages as much as possible and facilitate each student to learn by himself. So anyone can use this textbook to improve their learning ability and achieve unexpected results.

Since the publication of the official mathematics textbook, it has been constantly absorbing experience from practical application and constantly revising, striving to improve the textbook in terms of the number of questions, order and examples, so as to achieve the best learning effect.

Official Document Mathematics Course:

1. Arrange learning materials step by step, and systematically train students' logical thinking ability.

2. The content of learning materials is carefully arranged by experts and constantly improved.

3, 2 1 set of teaching materials, from simple to deep, provide learning materials suitable for each child for students of different ages, covering digital exercises, four operations and calculus.

3A Textbook: 1+ 1=2

O teaching materials: