studying for the gmat

GMAT Data Sufficiency: Breaking Your Assumptions

One of the most widespread mistakes I see students make on Data Sufficiency concerns the information they consider when evaluating a statement. To properly determine whether a statement is sufficient, you must be focused on using only the information given. If, for example, a statement only tells you that -10 < x < 10, but says nothing else,…
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GMAT Sentence Correction: Relative Clauses

As an independent GMAT tutor, I find that many of the students I work with struggle on Sentence Correction because they find it difficult to breach the gap between grammatical intuitions and concrete grammatical rules. In such cases, I find that students benefit most from clearly delineating the grammatical rules that appear on the test…
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The Logic of GMAT Data Sufficiency

I recently received an e-mail from someone undergoing a mini-crisis over GMAT Data Sufficiency. I’ve decided to share the e-mail and my thoughts with the GMAT world: “… so critical reasoning isn’t much of a problem, nor is problem solving. But I can’t, for the life of me, wrap my mind around data sufficiency. And,…
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The Most Common GMAT Data Sufficiency Mistake

As anyone who has prepared for the GMAT would attest to, the GMAT data sufficiency is probably the trickiest component of the test. Along with requiring an abundance of abstract thought, its strange wording and structure naturally induce students to make mistakes. Here, I’m going to discuss the #1 mistake students make on data sufficiency:…
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How to study (and not study) for the GMAT

A wise dude named Einstein once defined insanity as such: “Doing the same thing over and over again and expecting different results.” Despite the somewhat philosophical tenor of this quote, I find it highly applicable to the situation that confronts many GMAT test-takers. Having developed and familiarized themselves with a certain approach, many GMATers come…
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The downside of commercial GMAT materials

As a full-time GMAT tutor and a frequent reader of GMAT forums, I see many students who spend a decent chunk of their prep time using commercial materials. In a way, the use of commercial practice questions is almost inevitable: If you sign up with a company, you do so with the belief that its…
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