The main types of singing activities include solo singing, chorus, and musicals.

1. Solo singing: This is a way of singing performed by children individually. Children usually need to face the microphone or teacher alone. This form can help young children improve their self-confidence and musical expression.

2. Chorus: This is a form of collective singing in which all participants sing multi-part songs together. This form can cultivate children's collaborative spirit and collective awareness.

3. Musical: This is a comprehensive singing activity that combines singing, dance, drama and other elements. Young children can improve their music and dance skills by performing musicals, while also improving their performance and teamwork skills.