AP Calculus BC — is a 5 realistic from a practice score of 3 with 6 weeks to go?

The FRQ justification issue is a real score killer because they award method points explicitly on the rubric. Take 3 or 4 released FRQs from College Board archives, write your justifications, then compare them word by word to the scoring guidelines. You'll see the language patterns quickly and start writing them automatically.

Going from a 3 to a 5 in 6 weeks is hard but not unrealistic if your conceptual foundation is solid and the issues are execution. Algebraic errors and FRQ justification are fixable — they're habits, not gaps. Slow down on problems you know and write out every step until it's automatic.

For Taylor series, don't try to rederive everything — memorize the 5 standard series cold (e^x, sin x, cos x, 1/(1−x), ln(1+x)) and practice manipulating them. The exam questions are mostly substitution and composition, not derivation from scratch. That alone should fix most of your series losses.

Realistic framing: if you fix the algebraic errors and FRQ justification, you're probably already closer to a 4 than your practice scores show. Whether you hit a 5 depends on how much series you can lock down in 6 weeks. Aim for a strong 4 as your floor and treat the 5 as a stretch — that framing keeps you from burning out the last two weeks.

Update for anyone following this thread -- I just took another full practice test last weekend and scored a 4, which honestly shocked me. I'd been drilling series convergence every single day for two weeks using the College Board released FRQs and something finally clicked with the ratio test and limit comparison. Still not perfect on parametric but I'm not completely falling apart on it anymore.

I'm sitting the real exam in about three weeks. I don't know if a 5 is in the cards but I feel like a 4 is pretty solid at this point. If you're in a similar spot just keep doing timed practice sections instead of just reading your notes, that's what actually moved the needle for me.