YJ keeps saying not to erate, but rather to copy the entire game board over. That just seems super slow to me, especially when space is limited. Take a simple sequence game. If the rules put S in 5, I'll put S in slot 5 and draw a square around it to remember that it's there by definition. I'll work the question and when done, erase the question specific markings. Its quick.
But I assume there is a reason the experts say to avoid that approach.
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I can empathize with you completely because I used to think that erasing would save time and space. But here are some reasons why you should re-write the game board:
1. Lack of space should no longer be an issue on upcoming LSAT exams because each individual game now appears across two pages which provides ample room to draw out each sub-game board.
2. Each game type varies, but for the game that require multiple sub-game boards it is actually in your best interest to write them all out because the questions may hinge on them; in other words, they act as "cheat sheets" that you've already worked out that provide with a clear reference to answer the remaining questions. When you erase the possible game board you've written out, you're putting yourself at risk of getting a question incorrect that could easily have been answered had you not erased that particular game board.
3. For really easy games like simple sequencing, it may seem incredibly tedious to write out a new game board each time, but when you practice like that it helps improve your intuition and "mental" game board so that you can see the sequencing relationships in your mind without having to write them out. This way, when you're taking an officially administered LSAT exam, you can save time because you've trained your mind in such a way that writing out game boards for simple sequencing games is completely unnecessary.
What I've learned from 7Sage is that it's all about putting in the work up front so that it saves you time and energy to devote to the questions. This methodology applies to logical reasoning and reading comprehension as well.
Hope this helps and good luck!
Someone take my erasers away during PT's!!!
The people above have made some excellent points for why you shouldn't erase on the test and if you are pressed for time, I strongly urge you not to erase. However, I did want to tell you my own experience to reiterate the ever pressing point that there is no one size fits all rule to the LSAT.