Written by: Ali Garem - Mustafa Amin
As is clear in the Arabic language rules: authors said: «.. has toward us in this book the way deduction that is more teaching methods closer to the children's minds, and proven impact in them, and closest to the logic; for it is better defended to the thinking and research, and know the faces similar offense between likes and opposites; most of us have examples that devise rules which, on an unprecedented example of modern style .. ».