Dance grading is an examination system that evaluates students' level of dance skills and performance abilities. Different dance assessment organizations and institutions may have different assessment systems and standards. The following are some common dance examinations:

Royal Academy of Dance (RAD): RAD is one of the largest professional dance examination institutions in the world. Their grading system includes preparatory, junior, intermediate and advanced levels. Each level has a fixed set of courses and examinations covering aspects such as dance technique, flexibility, musicality and performance ability.

Imperial Society of Teachers of Dancing (ISTD): ISTD is a professional dance examination institution. Their examination system includes junior, intermediate and advanced levels. Each level has corresponding dance courses and examination content, covering aspects such as dance skills, performance abilities and dance theory.

International Dance Association (IDA): IDA is an international dance organization. Their grading system includes multiple levels, ranging from junior to advanced. The content and standards of the exam will vary at different levels, but generally cover aspects such as dance technique, flexibility, performance ability and musicality.

China Dancers Association (CDA): CDA is China’s professional dance grading institution. Their grading system includes multiple levels, ranging from junior to advanced. The examination content covers the skills and performance abilities of different dance forms such as traditional Chinese dance, modern dance and ballet.

International Dance Education Alliance (IDEA): IDEA is an international dance education organization. Their grading system includes multiple levels, ranging from elementary to advanced. The examination content covers aspects such as dance technique, performance ability and dance theory.

It should be noted that the grading system of each grading organization and institution may be different, so when choosing a grading exam, it is best to understand and choose the grading system and standards that suit you. In addition, grading is only a way to evaluate students' dance level, and it is not the only standard for dance learning.