There are two teachers in our school who teach mathematics in New Year's Eve (2003 and 405) and have 19 class (including social science) every week. They have to study textbooks, prepare lessons, make courseware, attend classes and correct homework (80 math books) every day; Revision of supplementary teaching materials (80 copies); Reflection after writing; Counseling students with learning difficulties (that is, two years) should meet all kinds of examinations. They are usually busy from 6 am to evening 1 1, and hardly dare to rest at noon.

Suggestion: Try not to cross New Year's Eve. I hope I can give you some hints!