Hi dmatiello,
To raise a 440 to a 640 will take some considerable work - and you'll have to make some significant improvements to how you handle BOTH the Quant and Verbal sections. With your current Test Date, you have just about 6.5 weeks of study time remaining, but that will probably not be enough time to hit your score goal. Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) How long have you studied?
2) What materials have you used?
3) How have you scored on each of your CATs (including the Quant and Verbal Scaled Scores)?
Goals:
4) When are you planning to take the GMAT?
5) When are you planning to apply to Business School?
6) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich