The educational system is imperfect. There is a huge gap between what the student should know and what the teacher thinks he really knows and can do.
That is why education faces a controversial task: on the one hand, to use any resources at our disposal in order to develop the student's cognitive processes and help him reach a new level of knowledge, on the other hand, to make the taught material as accessible as possible.
How can this problem be solved? By compiling competent, carefully thought out and systematized, logical tasks and exercises for independent work or essay help. It turns out that with the consistent solution of each problem, students actively and consciously assimilate some knowledge, and also learn to creatively use this knowledge in life.