Dear Rojdar teacher, before we started with you, when we were a child who did not like to study in mathematics places and did not want to pick up a pen, we finished with 1 mistake in mathematics at LGS, thanks to your great effort and very valuable communication with the more valuable student, you have been a light for my son, thank you very much. and my son never left you. my son no intention to left, my son addicted to you 😀