Take the children out for a trip and ask for leave.

According to the query of Baidu Library, you can take time off when you take your children out for a trip:

1. If you are asking a teacher, please write: I am xxx's mother, and I promised my child to travel after the exam. In order to fulfill my promise, I applied for X days off and took my children out to relax. Please give me your approval.

2. If you are writing to a leader, you can write: Dear xxx: I have promised my child to travel to xx in the summer vacation, and I am here for X days. Please give me your approval. Or because my daughter just finished the middle school entrance examination, she needs to relax and prepare to take her out for a trip, and applied for xx days' leave. I hereby ask for leave and hope for approval.