1. Teachers: Choose experienced and qualified foreign teachers, preferably from English-speaking countries, to ensure that children can learn authentic English.
2. Teaching content: Children in the primary stage need to learn basic English words, sentence patterns and pronunciations, so the training class should provide teaching content suitable for children's age and English level.
3. Teaching methods: Children in the primary stage need to learn through games and songs, so the training class should adopt vivid and interesting teaching methods.
4. Teaching environment: Children in the primary stage need a comfortable, safe and interesting learning environment, and the training class should provide such an environment.