The experimental class should be a new class in grade three, and the teacher should choose some students with characteristics (not necessarily the highest score, but the children who did some specific questions in the exam that year), not in grade four or five. The innovation class is only available in the fifth grade, and the level is above the gold medal class. It is said that there are 30 children, basically in the top 30 of the Asia-Pacific Cup, all of whom are awesome (similar to the training team for learning and thinking).