The way for teachers to check students' papers is: there are special software for checking papers, which are also used by schools, and there are special teachers to check papers to prevent children from copying.

Most schools use the duplicate checking system of HowNet, and some schools will give students 1 2 free duplicate checking opportunities before the final duplicate checking.

HowNet duplicate checking is to convert the content in the paper into text, and then compare it with the literature in the database through a certain algorithm. Tables and pictures are within the scope of duplicate checking.

Rules for repeated inspection

1. The duplicate checking system will set a duplicate threshold, which is about 5%. Different systems may have some deviations, that is to say, less than 5% of the content in a paper paragraph is allowed to be the same as other papers, and there will be no repeated reminders. Therefore, we can avoid repeating detection rules by modifying, for example, we can modify the word order and expression of sentences that are repeated with other papers without changing the original intention.

2. Many people have a misconception that the lower the repetition rate of papers, the better. This is correct in a certain range, which shows that your paper has more original content and less repetition with others, which is worthy of recognition. However, thesis writing is a statement and summary of scientific research work. In today's society, no one needs to learn from other people's research results and put forward a new thing entirely on their own. Any research is based on other people's research results. Therefore, it is unscientific and imprecise that the duplicate checking rate of papers is 0%.