Class 8 math chapter 8 Books

It is the famous saying that "NECESSITY IS THE MOTHER OF INVENTION" . It is valid in all the eras of our life whether it is education sector ,medical or something else . so here we talk about the necessities of students ,the problems they face in day to day routine .In case any Student miss the class then he've to borrow the copies and notes from other students of the class . After that he completely dependent on the other person. And the number of mistakes that were there in the first Copy are more in the copy again. And then if someone takes a copy of it, then there will be more mistakes in his copy than that. Thus a chain is formed.. And that's how kids learn the wrong things Sounds like a small problem, but learning wrong is a bigger problem than not learning anything. I would like to make a small effort to solve this problem on my level.