In the "big words and few sentences" test paper, children will have less information to pay attention to or deal with in their field of vision, thus reducing the memory burden. When answering questions, it also helps children to focus more on current problems and reduce the influence of other content. Children with weak visual perception write slowly and have many typos. They may not be ignorant, but they are confused by the dense papers. The general test paper may not be big enough for them to read clearly, so they will treat many similar words as the same, thus spending a lot of time. Watching it for a long time will cause eye fatigue and distraction, leading to a vicious circle. In other words, children's energy is mainly spent on "reading test papers" rather than "writing test papers".

So is word recognition. Even if the child's eyesight is normal, he can see clearly, but if his visual perception ability is not enough, it is still very difficult to recognize the words on the test paper. Most children who have difficulty in reading have little problem in recognizing faces and pictures. What makes children "difficult to read"?

It turns out that human perception is closely related to the brain. People may use different brain regions when recognizing words than when recognizing faces and pictures. The scientific research of cognitive nerve found that there may be a special font processing area in the brain for character recognition, that is, the left fusiform gyrus. Under the action of words, the activation of this area is not controlled by consciousness, nor is it affected by the presentation of left and right visual fields.

At the same time, we should also see that although this move has been successful in some children, it does not mean that it is a "panacea" to improve children's performance. Because examination is a complex psychological activity that needs to use a variety of abilities, in order to answer the correct answer, in addition to feeling and perception, you must also use other functions such as thinking and memory. Problems in any link will affect your grades.

Liang Yonghong, director of the Psychological Center of Kunming No.11 Middle School, believes that this practice is scientific, but the range of students targeted is relatively limited, and only those students who can't concentrate on text reading can have a significant effect.

Yang, an associate professor in the Department of Psychology and Behavioral Science of Zhejiang University, believes that to understand the definite relationship between the number of words in the test paper and children's grades, it needs to be verified by experiments. The experiment should be divided into experimental class and control class at least, and the students' intelligence level and learning methods in the two classes are the same. And do a series of experimental studies to explore the best Chinese character font size for students of different ages. This practice can only be treated as a case before it has been tested.

No matter what kind of evaluation, industry experts have given an encouraging attitude to this move. After all, this is an exploration of combining psychological principles with practical education, which makes many teachers and parents realize that students' poor grades are not necessarily due to insufficient efforts, but may be due to physical or psychological reasons.