Концепция мотивации, объясняющая, почему в разное время людьми движут разные потребности, разработана Абраамом Маслоу

In Russian schools, there are only 11 grades.

Students have to use School Diary.

Classes usually end about 3 pm.

Most russian schools are public schools

In a lot of Russian public school students must to wear uniform.

There are usually about 20-30 students in one class.