This type of class is meant for either the "week students" or for those students who want to study the syllabus in detail to secure a "Very high percentage" in the examination. In these classes theory and derivation of formulae will be explained in detail. Full solutions of the books and solutions of extra questions will also be provided. Once a student learns to drive the formulae in mathematics, they never forget the formulae. Once the concept of the theory and formulae is clarified, he can apply the theory and formulae at his will and without any hassle. Practice of solving the questions further increases the speed and effort of solving the problems. That is the grass root of increasing the level of merit in any class or competition. Good and complete knowledge always pays in anyone's life without fail. The number of classes can vary according to the calibre and effort of the student.