An ISTP's "demure" nature will make them the targets of asinine bullying. Train at the Cobra-Kai dojo and kick the fuckers in the head.
+1 to the above. Gradeschool Survival is a matter of prison rules. Kick a bully's ass, or become someone's bitch. You go from calm and collected one second to an asskicking fury and back again once your point has been made, and people will back the fuck off. Just remember, the majority of bullies you'll run into are pathetic lumps of crap with a knack for aggressive posturing. -Tempest09
It's quite obvious that the typical ISTP will most likely not fit all too well into the classic school system. You know who doesn't like inefficient, boring and non-optional places full of overly and stupidly emotional people in puberty? That's right.
Now usually school is finding that sweet spot between grinding for grades, trying not to beat people up, trying not to get beaten up, learning that beating isn't how you should solve problems all while getting along with the teachers for an ISTP, but that's the point at which MBTI can help him overcome the struggle and master the way of school quite effortlessly.
The ISTP *will* have to gather data. What MBTI Type is that guy that keeps bullying me? What MBTI Type the girl I like? That teacher that keeps ruining my grades? It is important to type the teachers correctly, for a mistake can have grave consequences. It is advised to use the class as a ground for practise by typing each and every one of them while then using online tests and their curiosity to either confirm or, well, not confirm the predicted results. If the guessing accuracy has become rather stable and the Ti-function of the ISTP aware of the workings of typing with functions, it is time to identify the true self of the teachers. For this is what will actually wield practical use:
Every type can be exploited for good grades.
Let's walk through the types most likely to be teachers, and discuss some of the techniques that can be advantageous for getting better grades through less work.
First off, the ISTJ. Usually Math/Physics/History teachers, they have a very calm and monotonous way of explaining things. The class usually isn't all too attentive to their stories, which either turns them into very strict or just resignated story tellers. The key to their respect is consistency- once. They remember very well, but their secondary function, te, will make them focus on students that they are not sure if they have understood the topic. Do the homeworks, ask questions a lot ( ideally making connections between the stuff they said just now and something they said a few lessons back, that will make them think you listened lol) and always volunteer to do the first part of whatever the assignment is. That has several advantages: They will often think you are eager to solve the problem, have a plan of how to solve the problem and that you know how to solve the later questions too - all the while you did exactly the first task, have no idea what is even going on or even what the later questions look like. Not gonna matter. You're gonna ace the subject ( at least orally, written tests are several magnitudes harder to manipulate).
Secondly, the ENFJ.
That germanistics teacher that is incredibly motivated, intelligent and well prepared and most of the time the favourite teacher of the school. They are creative, like poems and romantic stories as well as films with deep storylines; they also love fresh thoughts. This one is easy for you, you can actually be just the ISTP that you are. They instincively feel that you are their polar opposite and will be intrigued; just pretend to try hard to understand their point of view, and they'll be thrilled to give you great grades.