Primary: When the busyness of the holiday season is upon us we invite families to join us for a Harvest Party to enjoy time with your child before the hustle and bustle are in full swing. Elementary: The elementary years mark the development of social skills. Class parties are the perfect time to practice and develop these skills. From start to finish students plan the event and get to enjoy the festivities. Montessori views class parties as part of the curriculum therefore this is a student only event.