Teacher of mathematics in preparatory classes for engineering schools, center of Salé, Morocco.

I just discovered this site and I see an excellent way to:

• Improve my knowledge.

• Find sources which are used to make exercises for my students.

• Meet famous professors and students from various countries of the world.

• Help by giving answers or comments when I can.

I note that my mother tongue is Arabic, so if I speak bad English, all corrections of my mistakes will make me happy.