How To Learn From Your Errors
When I make an error, I get excited. Seriously—you should be excited when you make errors, too. I know that I’m about to learn something and get better, and that’s definitely worth getting excited!
Errors can come in several different forms: careless errors, content errors, and technique errors. We’re going to discuss something critical today: how to learn from your errors so that you don’t continue to make the same mistakes over and over again. First, let’s define these different error types.
Careless Errors
Remember those times when you were sure you got the answer right, only to find out that you got it wrong? For a moment, you even think that there must be a mistake in the answer key. Then, you take a look at the problem again, you check your work, and you want to slap yourself on the side of the head. You knew exactly how to do this problem and you should have gotten it right, but you made a careless mistake!
By definition, a careless mistake occurs when we did actually know all of the necessary info and we did actually possess all of the necessary skills, but we made a mistake anyway. We all make careless mistakes (yes, even the experts!); over 3+ hours, it’s not reasonable to assume that we can completely avoid making careless mistakes. Our goal is to learn how to minimize careless mistakes as much as possible.
Content Errors
Content is the actual knowledge we need to know in order to answer a question. What’s the formula for the area of a circle? What does the word serendipity mean? Content errors typically come in two forms: knowledge you did know but forgot, and knowledge that you didn’t know, or didn’t know well enough, in the first place.
Technique Errors
Beyond the content itself, we can typically work through any Quant, Text Completion, or Sentence Equivalence problem in multiple ways; the particular solution method we choose to use is what we call the technique. For Reading Comprehension, of course, all we have is technique; no actual facts (that aren’t given in the passage) are being tested on Reading Comp. We also need to employ timing strategies, in terms of both individual questions and the overall section.
The Error Log
Your first step is to create an error log. You can do this in a notebook or an electronic file, but have one consistent place where you can record your errors. I typically record careless mistakes separately from all other mistakes, but you can organize things however you want, as long as the organization is consistent. Then, you can use the error log to learn from your errors!
For each problem, keep track of this data:
1) The basics: where the problem can be found again in your materials, the question type to which the problem belongs (as specifically as possible), the content category being tested (if applicable), the time you spent, and the current date.
2) The error: describe the error in specific detail; if applicable, actually copy into your file the part of the work where you made the error. (Note: one problem could have multiple mistakes; include them all.)
3) The reason: figure out WHY you made this error and write that down; if there are multiple reasons, note them all. The next step hinges on this step, so make sure you really dig deep to figure out why! If you can’t figure out why, then you can’t figure out how to fix the problem. (See more on this, below.)
4) To Do: figure out what habits you need to make or break in order to minimize the chances of making that particular mistake again. For example, you might:
- create flashcards to help you memorize some content or technique that you didn’t know or messed up
- re-write your work for this problem in its entirety and try the problem again in a week
- do several problems of the same type, or drill certain skills, in order to build a new, good habit
- decide that whenever you see a certain type of hard and relatively infrequent problem, you’re just going to make an educated guess and move on (then learn how to make an educated guess and practice moving on)
Whatever it is, do the necessary work to create good habits and jettison bad ones. (There’s a GRE word for you!)
5) Review and reinforce: at least once a week, review your log. Are there certain types of mistakes you tend to make repeatedly? Are you continuing to make mistakes that you’ve made in the past and already tried to fix? Go back to steps 3 and 4 again.
The simple fact that you’re now aware of your tendencies will allow you to notice when those kinds of problems pop up on the test. When you’re already aware, then it’s easier for you to double-check the parts of your work where you’re most likely to make a mistake—or, if necessary, to let the problem go.
WHY Did I Make that Mistake?
Let’s talk more about figuring out why you made a mistake. Careless mistakes will usually be pretty obvious. When you’re looking through your work, something will jump right out at you. You added when you should have subtracted. You thought something out in your head instead of writing it down, or you didn’t check the proof in the passage. You calculated area instead of circumference. You missed the word not, which totally changed the entire problem or answer choice.
Quant content errors tend to be more straightforward, but Quant technique errors can sometimes be tricky to fix. Don’t assume that the first technique you tried is the one you have to use. Read the explanation, talk to your teacher or fellow students, check out some online forums, and try to find different, better ways of tackling the problem.
Verbal errors can be even trickier to understand. Whenever you pick a wrong answer (or you guessed and got lucky), ask yourself several things:
- Why did I pick the wrong answer? Unless I picked entirely randomly, something about it looked good; something about it made me think it was right. What was that thing (or those things)? Now I know those aren’t good reasons to choose an answer.*
- Why did I eliminate the right answer? Something about it looked wrong. What was that thing (or those things)? Now I know those aren’t good reasons to eliminate an answer.*
- Why is each wrong answer wrong? (As specifically as possible!) Why is the right answer right? (Sometimes, the answer to that is: it’s the only one left!)
*Note: if you didn’t know a Vocab word, then the reason why is obvious and the fix is straightforward (though not necessarily easy): learn that Vocab word!
There’s one type of careless error I want to address specifically: when we meant to choose one answer (the right one!) but accidentally chose another. It’s especially disheartening when this happens, and it often happens because of sloppy scrap paper technique.
On Quant, it is critical to write down what the problem asks for you to solve. For multiple-choice or fill-in-the-blank questions, I leave a little space for myself to do the work, and then I write what I want to find and circle it. Then I go back and do the work in the space I left above. When I’m done with the work, I run right into my x =___? circle and I’m much less likely to, for example, pick the answer that actually represents y. On Quantitative Comparison questions, the answer choices never change, so instead I focus on organizing my work. I write the info down the way it’s shown on the screen (two columns, possibly with some additional given info above) and I write down ABCD so that I can cross off answers as I go.
On Verbal, it is critical to keep track of your thinking for every answer choice. First, write down as many letters as you need vertically, based on the answer options given on screen. For example, for a traditional 5-answer choice question, I’d write ABCDE. If there are two blanks with three options each, write ABC down twice and label the first column 1 and the second column 2.
Next, you need four consistent symbols. One means “definitely wrong,” one means “I have no idea,” one means “maybe…” and one means “right!” As you think through each answer, make the corresponding symbol on your scratch paper. You can use any symbols you want, as long as you always use the same symbol for each category. When you’re ready to choose an answer, circle that letter on your scrap paper, then immediately look up and select the corresponding bubble on the screen.
Okay, you’re ready to learn from your mistakes. Go start that error log right now! ?
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