Yes, in some cases.  Some courses may have coursework that can only reasonably be completed in person, even if some of the components of the course can be taught virtually.  Courses with on-campus  requirements are listed on the Calallen Virtual School page.  Students who need to come to campus to complete assignments will be assigned after school hours by their teacher.  Students participating in virtual instruction are not allowed on campus during the regular school day without adminitrator approval.