Just got my SIFT results back and I tanked the math knowledge portion. My overall score was 42, below the 50 most programs want, and I traced it mostly to math where I was scoring in the 30th percentile on practice sets. I've been out of a math classroom for 5 years so algebra, trig, and geometry are all rusty.
My other sections were decent — spatial apperception around the 65th percentile and reading comprehension near the 70th. It's specifically the quantitative stuff dragging my composite down. I have 60 days before I can retake and need to bump my overall score by at least 10 points.
My plan is 1.5 hours a day on math exclusively for the first 30 days, then full timed practice tests the last 30 days. Starting with Khan Academy for algebra gaps then moving to trig. Has anyone used this approach for a SIFT retake, and what score gains did you actually see the second time around?
Trig is worth the investment. There are probably 8-10 trig questions on the math section and learning the unit circle and basic identities could add 5-6 percentile points alone. I spent 12 hours on trig over two weeks and saw a real jump.
Your spatial apperception score is already strong, which is great because a lot of people tank that section. With 60 days and a focused math plan, getting to a 52-55 composite is very realistic. Just don't neglect helicopter knowledge — it carries decent weight too.
Full timed practice tests in the last 30 days is the right call. The SIFT is also about pacing — you can know the material but still lose points burning too much time on hard problems. Practice skipping and coming back.
I retook it after 45 days of prep and went from a 44 to a 58. Math was my weak spot too. Khan Academy is solid for foundations but also do SIFT-specific practice problems — the format tests applied reasoning more than pure calculation.