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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d3XhuqLDrXPhurZ4w612eMOy4bqiw63hu4p4xanhuqDDrcOB4buNw6134bqi4buN4bqgw63hurzhuqLhu43huqDDreG6usOzeMOtw4Hhu6PDgOG6veG7hy9F4buD4buHRcOtcsOBw7PhurrhurrhuqtpRVHhuqJzSmnhu4Mgd+G7j8OAw61X4buZ4bqgdsOtM3d14bqiw60zdcOBdXbhurjDs0V34buHL0Xhu4M=