Legal analysis: Teachers have the legal obligation to care for and care for all students, respect their personality and promote their all-round development in morality, intelligence and physique. If it is only a small amount of copying, it is not illegal, but the method is really improper.

Legal basis: Article 29 of the Compulsory Education Law of People's Republic of China (PRC) stipulates that teachers should treat students equally, pay attention to their individual differences, teach students in accordance with their aptitude and promote their all-round development. Teachers should respect students' personality, and must not discriminate against students, and must not punish students with corporal punishment, corporal punishment in disguised form or other acts that insult their personal dignity, or infringe upon their legitimate rights and interests.