First, download "Video Lecture on Basic Mathematics in China" and "Introduction Video Tutorial of Great Liu Ren-Official Edition" for free. If you can understand or partially understand the video content, you can consider paying for the video lecture specially made by Mr. Yang for the students in the senior class of Grade 6. Learning by video is very rewarding and the level is improved rapidly. I feel: without the guidance of teachers, it is too difficult to learn the talents of the sixth grade by reading books, especially for students with poor mathematical foundation. If you want to learn "Big Liu Ren", it is not enough to be enthusiastic or impulsive. It is best to meet the following conditions: first, you must have a hobby in this field; Second, we should be able to squeeze out time, because learning needs to understand and remember something; Third, be persistent, and don't expect to become a master for a while; If all the above conditions are met, come and join our promotion class. In addition, I tell you, there are many other websites that sign up for study online. Comprehensive evaluation, this website has a strong sense of responsibility, high level of teachers and low video payment (not advertising). Hehe, I started learning by video in March 2006. I didn't know Mr. Yang before, or even the word "big", so I started to learn in a daze. According to the study in the past year, hehe, the original choice was right, but now I can't get rid of it. There is still a long way to go in Xiu Yuan, and I will go up and down!