The so-called fuzzy large area means that almost every lesson involves pinyin, characters, words, sentences, paragraphs (paragraphs), articles, chapters, dots (punctuation), language (grammar), revision (rhetoric) and reason (logic).

The so-called clear context means that the knowledge of mathematics is systematic and coherent, and the order of knowledge is fixed.

For example, to learn fractions, we must first understand the meaning and unit of fractions, be familiar with approximate fractions and general fractions, then learn the addition and subtraction of fractions with the same denominator, and then learn the addition and subtraction of fractions with different denominators and the multiplication and division of fractions. We can't transfer the order of learning. This is a clear line, which is linked by a link. According to this characteristic of mathematics, teachers and parents should find out the details of students with learning difficulties when tutoring them. What's wrong with him? For example, he can't add and subtract different denominators, that is, he doesn't have general knowledge. Find the root cause and prescribe the right medicine, and the problem will be solved. Of course, students' problems are more complicated, and the systematization of knowledge has not been well formed. Therefore, the tutor should check and fill in the gaps line by line, which requires patience and the cooperation of students. Treating your head with a headache, your feet with a sore foot, or your eyebrows with a beard can only get twice the result with half the effort.