First, use Mandarin. A teacher's fluent standard Mandarin is simply a kind of happiness for students and plays an important role in the excellent completion of teaching tasks. Through observation and comparison, it is found that the use of Putonghua teaching can greatly improve students' attention and interest in learning, and can harmonize the relationship between teachers and students, thus improving the teaching effect.
Second, the voice should be clear and loud. The low and vague voice makes the students sleepy and distracted, and they don't know what the teacher said. Teachers don't talk in vain, but also delay students' time, which leads to students' weariness of learning, dull classroom atmosphere and inability to complete teaching tasks.
Third, the language should be concise and clear. Don't talk too much, don't talk too much, don't talk nonsense, don't explain and emphasize a problem repeatedly, and don't take this, that, um, that as a mantra.
Fourth, use more affirmative sentences and less negative sentences; Use more declarative sentences and less rhetorical questions: don't use irony.
Fifth, pay attention to tone and intonation, and have cadence.
Sixth, the language should be sincere and cordial, humorous but not vulgar, gorgeous but not impetuous.
Seventh, use words correctly and express meaning accurately.