Expected September 1. According to official website of Cao Xian County Education Bureau, it is known that the summer vacation time of senior high school, junior high school and junior high school is from July 6 to August 3, 2023 1, and the school is expected to start in September1. Cao Xian No.1 Middle School, a provincial key middle school, was founded in 1949. The enrollment rate ranks in the forefront of Heze area, and the quality of running schools is improving year by year. For 9 years in a row, it ranked first in the evaluation of teaching quality in Heze City, becoming a place that thousands of students yearn for in the vast areas of southwest Shandong and northeast Henan.