Hi Zhihao

I can see that you are very familiar with UDL,UID and UbD, and have explained the characteristics of each of them in your BLOG, making the content of the article very clear. But I think the content is too theoretical, it would be better to add some of your own opinions or some of your own experiences. I agree with what you said that UDL can eliminate obstacles in the course, which can make the teaching process more targeted to some extent, and also help some students with physical and mental disabilities better adapt to learning and meet the educational needs of students with different needs.