4 Week Study Plan, Fourth Week
Plan for the Week
During week 4, you will finish your preparation for the GRE. You'll review the second of your simulation exams, and, more importantly, you'll do more practice questions and then REVIEW all of the practice questions that you have seen. You'll need to spend at least 6 days in preparing for the GRE, spending upwards of 2 hours each day, for a total of 12 hours. Here is a sample week plan:

Day 1:
Review the second simulation GRE exam that you took at the end of week #3. Really try
to understand why you may have gotten some of the questions wrong.

Days 24: Continue to do practice questions from ALL of the
available sections. Spend upwards of 90 minutes each day doing problems, and be
sure to analyze and study the explanations as well as provided hints for each
practice questions. You'll notice that the provided hints are meant to show you
how you might want to approach a problem. There is usually more than one way to
arrive at a right answer, so your method might be good, too, but be sure that
you are comfortable with quickly understanding each question and knowing if you
have to guess or if you can eliminate any of the choices. Most
importantly, briefly review all of the practice questions that you have done up
to this point  you should be pleasantly surprised that some of the questions
that you did early and which you thought were difficult are straightforward by
this time. If this is the case, then you have most likely followed the format
of this plan and you should be well prepared for the GRE.

Day 5:
Almost done! This really is the last day when you should be going over
vocabulary words and reviewing any of the tutorials that you may have struggled
with.

Day 6: Ideally, you should try and drive or otherwise visit the exam center just to make sure you know how long it takes to get there. It would be unfortunate if you were to find out on test day that the center is 2 hours away as opposed to what you thought was 1 hour, in which case you'd probably get unnecessarily worried on the day of the test. Also, briefly review any of the tutorials sections that you have had most trouble with, and review those questions that you've seen in those sections.
Week Study Plan for Math Component of GRE
There really are no new topics that you'll learn this week; instead your week will be spent doing practice questions. By now you should have realized that the math part of the GRE is not about testing you and whether you have memorized formulas. Although simple formulas are required, the main part of the math assessment of the GRE revised general exam aims to measure your ability to dissect and analyze a problem. There is no way for you to guess what questions you'll see on the day of the exam, but by now you should be confident enough to know that you can tackle a math problem with ease.
Week Study Plan for Verbal Component of GRE
As with the math study plan for the GRE, the verbal study plan for the last week does not require you to learn any new topics or ideas; instead you'll be doing plenty of practice questions.
Week Study Plan for Essay Component of GRE
Like we've been saying all along, you can't learn how to write well in just four weeks, but you CAN prepare for the type of essay that will be expected of you. Remember to write short, clear sentences. The more complicated your writing, the more difficult it is to decipher, and the bigger the chance that one of your essay readers will be confused and will be forced to give you a low score. Remember  simple is better.