It depends on the age ranges.  For example, if your children are close in age, group them into sets.  Read to all the children as a group and ask and do age appropriate questions and assignments.  Each child is given personal time of 15-30 minutes for instructions in math, writing, and reading. Penmanship is taught individually to each child.  Writing is taught both in groups and individualized.  Once the children have mastered reading, writing (penmanship), arithmetic (math facts), they are given the responsibility to complete their own school work with guided assistance.  During the middle school grades, the children are completing school work alone and become totally independent.   College is substituted for high school and at the college/dual enrollment level, the children are REQUIRED to take full advantage of all college resources for their instructional learning needs.