Subject is divided in two parts: Semester 1 (36 hours on 27 videos), and Semester 2 (42 hours on 32 videos). Each semester is divided in a few chapters. When you subscribe to a semester, you don’t need to subscribe to any chapter as all chapters under that semester are included. The content of semesters is different from school to school. So, before you subscribe to our semester, make sure that you have all chapters that your teacher is planning to do at that semester. You, also, can subscribe to chapter by chapter and to be in line with your schoolteacher. You can see content, below, of each semester or click here for full detailed contents.