As i am a student i can share my own experience about school life. School life is the life where one can get something new to learn and the basic thing we learn here is how to talk with other people. Let's jump to our question about school system.
In my country I feel there is worst system. Because there is no practical knowledge we get here. They teach us how to cram in exams. But they never teach us what is the functions or how the things works. So there are many students getting fail in exams because they are getting bored of studies. First there is a Kg class to 12th standard we need to study 12-13 years in school life. Its too much to get a person well educated. There are three section included in our Indian school system they are :-
1) Primary
Primary section includes the class from 1st standard to 8th standard in my country. Primary education is the basic education where students gets the basics of learning.
2) Secondary
Students here are quite mature enough and they are promoted to class 8th and from 8th standard to 10th standard students are called as secondary students. Where they get complete knowledge about each and every thing to learn new things.
3) Higher Secondary
Higher Secondary class includes two standard, they are 11th and 12th standard. Where students are mature and at the age of 15-17 they are in this section.
This is the format of education system of school life in my country India.