We are all junior high school students. I want to go on a summer vacation with my classmates. How can I get my parents to agree?

Check hotels, attractions, and train tickets by yourself, write down your daily itinerary in detail, where to go, how to go, and who to go, as well as safety matters, such as calling once every half day, and getting back to you in time. Submit on-site photos, and you can sign them. Well, it's more formal. I've done something similar to let your father know that you have indeed made thorough preparations for the trip. If there are friends, teachers or relatives in Chengdu that your parents can trust, You can also ask him to vouch for you, which will be much easier. Of course, the most important thing is the two points I mentioned before. In the next month, communicate more patiently, take some practical actions, and don’t give in. It's not worth the gain to make your parents angry, since they are still the source of the funds.