I just finished making my way through all 8 of the
MGMAT guides. So far I've just been doing the review problems at the end and skipping the sections that refer to OG12. Anyways I took my first diagnostic GMAT (one from the GMAC prep program) and in the quant section I primarily missed DS questions. I missed several touching on geometry and number theory, but I also missed several other DS covering other topics as well. I don't seem to have much trouble with PS problems in those areas though. I was wondering if anyone has any strategies or tips to improve performance on DS questions?
Also for the verbal section, all but one of the problems I missed were on SC. I'm a native English speaker, but I've always sucked at grammar. I read a book "English Grammar for Dummies" before I started studying for the GMAT and I made flash cards and took careful notes while going through
MGMAT SC. I've seen suggestions to read books to get a feel for correct grammar usage, but I am a native English speaker and I'm fairly well read so I'm not sure if that strategy will help me.
FYI I do keep an
error log.