Margie and Tommy have their individual schools. These schools are in their respective home. The mechanical teacher is a computer screen with good audiovideo system. It delivers their lecture, asks the questions, gives homework and checks the homework and assignment papers. Sometimes, the mechanical teacher gets some fault. This may lead to inaccessibility of certain subjects. So it can lead the teacher to throw really difficult test, which may not be fit for the kids. Mechanical knowledge is needed to set them right. This mechanical teacher is adjusted to the level of the students, otherwise they all show poor results and cannot solve the sums properly.