...low gardes doesn't means stupidity...

Well yeah we could say that low grades do not mean a person is stupid. But it could mean that a person with low grades is not interested in learning or is too lazy to learn. That's why I think grades are also important because although it doesn't necessarily dictate your learning ability/capacity, it could give impression about your study habits. In the long run, it could dictate what kind of person you are. Of course there are some exceptions to this observation but generally, that is how I see it.

There are many factors to bad grades. There are a lot of students that just don't feel properly motivated by the material in the class. It does astound me that people are baffled when a student gets a good grade in one subject and not a good grade in another subject. Or when a normally good student gets a grade that might not be to their normal standards. Of course, the education system as it is right now, really could use some evaluation. But it does seem like it will need to be something that needs to be torn up and built from scratch. The lack of quality instructors is rather appalling right now. There are some good teachers, and there are many of those good teachers who are working without any support. If a teacher is not well equipped to teach the class, then the students aren't going to have much of a prayer. Grades are rarely everything but they are most certainly often something that they get judged on.

I think that different people are different kinds of 'smart'. Not everyone is 'book-smart'. In fact I nearly failed pretty much all of my math classes and science classes but I managed to graduate high school and I consider myself of medium-intelligence. I think everyone has their niche. School is not necessarily a good critique for who is "smart" and who isn't - just because there are so many other ways to be smart. *shrugs*

Its more like they have too much distractions and they cant focus or they happen to be lazy to study. Another possibility is that they dont have strict parents. usually those academically obsessed parents pressured their kids to study, study and study.

yeah u are right friend .. grades are not the basis to judge the intelligence of a person. Even in school level a student who is more good at mugging up rather than by analyzing or learning the concept properly can end up getting a greater grade than the one who really puts in the effort to get into the skin of the concepts. Many students lose out their ranks mainly because they are overconfident or careless during exams and not because they are not intelligent. So i strongly support your statement that grades are not the basis to judge students.

Not all that excel in school are successful in life. They may be good in academics, but in real life situations where real life answers are needed, they are clueless. I think that being street/life smart can eventually lead you to learn the things that you are bad in school before. I know some classmates that really are good in academics but when we graduated, they had difficulties in landing the job that is related to our course. Sadly, one of our cumlaude is in abroad attending to a work that is entirely not connected to the one we finished. I am an average student in college but I was able to land the job I want and I am very happy about it. I want to achieve more in academics and in life so that is why I will enroll in a short course related to my degree and improve at the same time my people/social skills.