School-at-home is the style most often portrayed in the media because it is so easy to understand and can be accompanied by a photo of children studying around the kitchen table. This is also the most expensive method and the style with the highest burnout rate. Most families who follow the school-at-home approach purchase a boxed curriculum that comes with textbooks, study schedules, grades, and record keeping.
Some families use the school-at-home approach but make up their own lesson plans and find their own learning materials. The advantage of this style is that families know exactly what to teach and when to teach it. That can be a comfort when you are just starting out. The disadvantage is that this method requires much more work on the part of the teacher/parent and the lessons are not as much fun for the children.