Giáo viên phải tươi cười với học sinh
(TPO) - Mỗi khi bắt đầu giờ học, các giáo viên của một trường trung học ở  Anh được yêu cầu phải mỉm cười với học sinh, và  tránh làm học sinh buồn chán bằng việc dùng những từ  ngữ quá khó hoặc quá dễ.
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