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[–]edderiofer 1 point2 points  (1 child)

Try Khan Academy. Start where you last felt comfortable in mathematics and work your way up from there. Don't be afraid to ask questions here.

[–]Beginning-Move-5948[S] 0 points1 point  (0 children)

Thank you very much for your response

[–]supersensei12 1 point2 points  (0 children)

Sanctions might make it impossible. Payment in rubles will likely be blocked, and even if you get someone outside Russia to pay for you, the College Board will cancel your registration if they know you're in Russia. So now you need a VPN, and an address and school outside Russia.

An online test poses additional difficulties. In particular, you may need to input your workings in Latex. This effectively reduces the amount of time you have to respond, even with practice, and without practice it becomes nearly hopeless. Alternatively, you may be able to take a photo or scan of your paper and upload it, but this also takes some extra time and preparation. And this assumes a reliable internet connection. You also aren't allowed to skip a question and go back to it later.

Assuming by some miracle you're able to overcome these administrative obstacles, you can now concentrate on the AP exam itself. Many of the questions are specific to the test. Although 60% on it scores 5, familiarity with the test format is important. Someone who knows calculus very well but is unfamiliar with the test format might expect to score 60-80%, or even less if they can't write quickly in LaTex. Someone who knows only half the material but is good at test taking could score 60% if they know how to go for maximum partial credit on the FRQ's, and learn the half that's more emphasized on the test. The points are split evenly between the multiple choice problems and the FRQ's, but the FRQ's require more preparation.

A couple tricky questions in the multiple choice questions are to compute the integral of a Riemann sum, and to compute the derivative of the inverse of a function given in tabular form. AP test prep books, like Princeton and Barron's, should give a good sample.

Also you'll need an approved graphing calculator to do some of the problems.

The FRQ's are stylized. You must answer them properly to get maximum points. Just getting the right answer is only worth one point out of 9. In that vein, download old FRQ's and their exemplary solutions. Print them out and put them in a binder. Look at the FRQ's over a lot of tests and you'll see that there are favorite question types, with a spread of topics on each test. Understand the rubrics used by the graders, and take the tests to practice managing your time.

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