Mainly memory training. My child studied there for seven days and six nights, and it was quite effective. Like memorizing words, it is much faster. It used to take several days to recite a text, so he may not remember it well. Now he can recite a text in half an hour. If he consolidated later, he wouldn't forget, so his grades improved a lot. For example, he used to have a poor Chinese score of 60 to 70, but now it is about 80.