R_t

what is the basis that english is discovered. what is the basis of alphabet,grammar,phonetics and all.......

how to present math in different angles which represents depth of subject,easiness,empowerment,basics,logic,analyze,view of subject from back,view from front.Give multiple e.g.s .(just 11th & 12th)

Is there any more thing to be known for me to get an idea about that from you itself ???????

could you tell me how and what the professionals will teach, A list of ten topics, an idea about 1 or 2 topics and a list of some angles as such....