Draw lots for 5 minutes
Write lesson plans for 20 minutes, give lectures for 5- 10 minutes, summarize or reflect for 5 minutes, and the remaining 5 minutes are examiner's comments and the like.
Because children of different ages are different. The attention of the small class is only 5- 15 minutes, so the introduction should not exceed 5 minutes, and the whole activity design should not be too full.
In addition, the questions drawn by everyone are similar, so it is hard to say what to test completely. It is right to prepare more skills.