The winter and summer vacation durations for Liaoning Primary Schools in the United States typically range from three to four weeks each. This extended break is designed to provide students with ample time to rest, engage in recreational activities, and prepare for the upcoming academic year. According to data from the National Center for Education Statistics (NCES), the average duration for winter vacation is around 3.5 weeks, while summer vacation spans approximately 9.5 weeks. These figures reflect the standard vacation lengths observed across various primary schools in Liaoning, aligning with national trends in the United States. The extended summer break is particularly important for students to recover from the rigors of the academic year and to engage in activities that promote personal growth and development.