Whatever the age of your children, you should be prepared to have fewer hours than usual to focus on them in the summer months.
While in your internship you will be able to spend time with your children on weekends and most evenings as if you had a job (please note, however, that many outpatient agencies do require that you work one evening a week). You will be spending time every weekend preparing for the following week, and you do have other assignments to fulfill, but it is manageable if you pace yourself.
While the field department takes family and personal circumstances into account in assigning students to placements, students do need to be prepared to work a full 30 hours a week during standard business hours (typically 8 a.m. to 4 p.m. or 9 a.m. to 5 p.m. with perhaps one evening a week). The 30 hours of field need to be completed across either a four- or five-day week. Some students with children find it helpful to work five six-hour days in order to free them for afternoon childcare. The field department will try to accommodate this schedule if possible so make sure that you make your needs clear on your field placement application form with as much detail as possible about the kind of schedule that you hope for.