Our students have little preparation before the competition so they struggled with the theoretical exam and didn’t have enough time to finish. But I believe they can do better in the experimental exam because they proved to be fast and intelligent when solving experimental problems.

The test was well-written. It could be challenging for some students but I think my students did well. Our team might be able to get all five medals.
The Van Phuc Silk village we visited today was beautiful. Now I really want to learn how to make silk. I already bought two scrafts for my friends.
 

The question about the pollution of motorbikes’ smoke with boundary layer was a very good problem, very practical and useful! The mathematical part is not very easy though. I hope my students can achieve honorable mentions. For sure they will try to do better in the experimental exam.

The theoretical exam was long but I like all the problems. Drawing is probably the easiest part and the most difficult part is calculation. I hope my students did well.
Long paper but I like the entire questions in this test. The easiest part I think is the draw, and the most difficult part is calculation. I hope my students can do well.
Ah, I love Vietnamese fruits, especially dragon fruit. It’s delicious and has a especial name.
 

The exam was good. The questions about air pollution in Vietnam are very interesting.

Team leader of China: Kun Xun

The test was very complex. There were difficult questions so it might be hard for my students to get perfect score. However, getting high scores is absolutely possible.

The exam was difficult. There were many tricky questions.

The national conventional center was very nice and the performances were so lovely! It was not too long either.
There was a lot of text in the exam. The problems about life were interesting. The questions were well-explained and reasonable.

Well, it is hard to say about the theoretical exam, but in general, the problems were difficult. I am slightly afraid that my students did not have enough time to finish all the problems. It may take them more than 5 hours. The 3rd question was the easiest so I hope all of my students could do it. The most difficult one? Hmm, I don’t know, probably the 2nd part.