Many of my students have told me versions of the same thing, especially if they've been selfstudying. It goes something like this:
"I'm trying to improve, but I've hit a plateau. I'm always 5 or 10 on Logical Reasoning (or Reading Comprehension), and I can't figure out what's wrong. My misses are all over the map, and there's no pattern or consistency to what I miss. What do I do? It doesn't seem like it's any particular question type, I just don't get better." Sound familiar? It should. It happens to everyone studying for the LSAT. At a certain point, it's tough to figure out what might be going on or why you're missing those last few questions. But there's hope. Because there is always a pattern. No matter how random it looks, or how inconsistent, I guarantee you there is a pattern to what you miss and why. Last winter, I had a student with this very issue. He couldn't understand why he continued to miss 46 questions over and over on Logical Reasoning. He sent me the practice sessions, showed me the the ones he got wrong. Sure enough, he missed different types of questions without rhyme or reason. Parallel reasoning, strengthen, must be true. All over the map. However, many of his mistakes DID share a common theme. They all involved making use of and understanding the conditional relation. One, for instance, was a Justify the Conclusion question where the conclusion expressed a conditional. Another question was a parallel reasoning question. It made use of a hypothetical syllogism (basically, nested conditionals). A few were flaw and weakness questions, and guess what? They all made use of wrong inferences based on the conditional relation. So, we drilled the conditional relation, its implications and its mistaken inferences. He went from missing 46 to missing 1. Across both sections. Of course, that's a relatively simple pattern. Others were sometimes more complicated. One of my students kept missing LR questions that were science based or experimental. No particular reason; mental block. Pointing it out when a long way to removing it. Another kept missing questions where the conclusion expressed a causal relation. I could go on. The point is that there is always a pattern. You may not see it, but it's there. The good news is once the pattern is identified, it's easy to fix. Sometimes it just takes a fresh look to help see the pattern.
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I'm awesome at Reading Comprehension questions. Seriously. I destroy that section. And I'd love to tell you it's because I'm incredibly smart (though I am), or because I have an eidetic memory (I don't), or because of some other gloriously insane skill set. But none of that would be true. I'm stellar at RC because I read all the time and I'm always reading philosophy. There's no big secret. I read articles and books that are complex and challenging. I sift through arguments. I read critically and evaluate what I read. I ask questions. I examine assumptions, and I'm an active reader. I am really good at reading. Olympicqualifier good.
Reading, like most things, is a skill, and it's not a binary skill. There aren't just two settings: Can't read/Can read. Once you learn how to read, you don't pass a magical threshold that grants you access to all written things. At most, you get a provisional membership into the community of literacy, and an invitation to develop your skill further. Unfortunately, most do not accept the invitation. Their skill stagnates. What does this mean for Reading Comprehension on the LSAT? It means that there's no way around the requirement to become a better reader. You have to develop the skill of reading well. You can't bypass it, there are no tricks or strategies that are fullproof. You have to read. A lot. There's a reason why the RC section is so famously resistant to improvement past a certain point: because you can't cheat becoming a better, more refined reader. And that is what you have to do. Lucky for you, it's a problem with an immediate and powerful solution. Read challenging and complex things that test the limits of your skill. You know the LSAT, in good academic fashion, cites the sources from which it takes its reading selections. Start there. Check those books out of the library, download them on your tablet. Or better yet, go to your University Library and read highend publications: the New York Times, The New Yorker, Harvard Business Review, and so on. Read out of your comfort zone, and read widely. You don't need to read what I read  esoteric books on Heidegger  but you shouldn't read People Magazine and 50 Shades either. Aim for the middle ground: challenging, but accessible. Hit up JSTOR. And while you read, ask questions. Don't read passively! Assess what you read, be critical, and stay engaged. Most importantly, start today. The very first thing I tell new students that I tutor: get started reading. Right now. Right away. It's a cumulative, slowmoving skill. You won't realize you're getting better, but you will be. And for those first few weeks, while you work with your tutor on other things, like logical reasoning and diagramming, you should also be reading, all the time. I promise you: you'll be shocked by your improvement on RC questions. I'm a strong advocate of two counterintuitive strategies for Logic Games: 1) NEVER use brute force to solve for the answer to a question. This goes against what many of my students do, or think they should do, when they watch YouTube videos or take a prep course. The plus of solving with brute force is that you will eventually get to the right answer. However, the negative is that it takes far too much time. And the tradeoff is not worth it. The time you spend solving for all possible worlds to get to the answer means less time for other questions and other games. I encourage students to learn how to NOT use brute force; and 2) NEVER determine inferences you don't need. Many students diagram the rules and then start trying to find as many inferences as they can, even without knowing if they're needed in the game. But it takes too much time, and if you understand the problem and more importantly, the logic behind the problem, you will quickly learn how to take only what you need. Below I provide an example of this strategy. It does not teach you how to deploy these strategies on all and every game. But it does offer an example of how it works. I'm using a relatively simple game to demonstrate, but it works on every game, all the time. If you want to follow along, it's a logic game from Preptest 43, section 3, questions 7  12. The set up is very easy. There are six dogs, and there are six slots for the dogs. Two per day, Monday through Wednesday. This is good. It means our diagram is very easy, and it means our inferences are limited. Our basic setup looks like this: Very simple. Days of the week, two per day. Six dogs total, so six slots for six variables. Nice and balanced. And just like that, we have our diagram. Nothing complicated, nothing timeconsuming. Let's now turn to the rules: It's important to notice how simply we can diagram our rules. And there aren't a lot of rules. At this point, prep books and courses will tell you to do a bunch of different things. Forget about them. Instead, do one simple thing. Ask yourself, what information MUST the game provide in order for me to solve this game? Right away, two things stick out: 1) The game will have to help us match pairs of dogs. There are three days, two dogs per day, so there are three pairs of dogs. The game MUST help us establish what those pairs should be, regardless of day. 2) The game must help us know what pairs go to what days. Which two dogs are on Wed, Thurs, Fri? It should not be at all surprising that all of our rules help us to figure out these two things. And notice: two of our rules deal with the first piece of information (dog pairs). And two of our rules deal with the second piece of information (dog to days). So when we look for inferences, we now know EXACTLY WHAT WE NEED TO LOOK FOR. We're looking for anything that helps us match dog pairs, and anything that gives us dogs to days. Don't just start looking for inferences! You need to know WHY you're looking for inferences and WHAT inferences you need. Once you've diagrammed your problem, take just a few moments and ask what information the problem must provide you. Usually, it's obvious. Sometimes, it's not so obvious. But asking yourself this question allows you to know what kinds of inferences to expect in the problem. You'll also notice that I immediately took the contrapositive of every conditional. This is what I consider an "autodeduction." It should be done automatically, every time, without thought. Do we need to draw every inference? Absolutely not. Why would we? We don't know what inferences are relevant. So what inferences do we draw? Only the most immediate and obvious inferences! That's it. And in this problem, there is only ONE key inference, and most would identify it right away. Here it is: See, the first two rules deal with the dog pairs. And they make it very easy to determine which dog is with which other dog. L + P go together. But G and H can't be together. That leaves only K and S. But if G and H can't be together, then K and S have to be paired with G and H. The only thing we don't know is who gets K and who gets S. This is a powerful (and simple) inference for two reasons. (1) It completely maps out the pairs of dogs, and (2) It is likely that the questions will somehow tell me who gets K and who gets S. Let's look at the questions... At this point, it's easy to say, "what about other inferences? That can't be all we have to do!" But it is. Yes, there are other inferences. Yes, we could solve for multiple scenarios. Yes, there are other things to notice about this problem. But the goal is not to find the truth of the logic game. The goal is to answer the questions as quickly as possible. So, why waste time with other inferences? I know the pairs of dogs, and the conditionals will help me determine days. Since the conditionals are the only rules that deal with days of the week, then I know that if the question asks about days of the week, I know just where to go. That's all I need. Why waste time? Altogether, this took us less than a minute, and I know the questions will have to help me determine pairs and days for the dogs. So let's move on... 7. Is a list question. I'm not going to dwell on this. List questions are always the same. They are intended to be easy, and to drain time. The fastest method for every list question? Take the rules, one at a time, in order, and eliminate options until you have the solution. That's it. It's the fastest way, the simplest way, and it saves the most time. 8. A must be true question that is global in nature. These give students fits because it leads them to think they must have missed something. Usually, the answer is not immediately obvious, and it's tough to brute force these questions. After all, it's asking for a deduction that is logically necessary. Logical necessity is tough to brute force. The other reason these questions are tough for most people is because you must read each answer and make a decision. That takes time. So, you have to think about the question. Skim each answer and look for a general pattern. That pattern will usually point you to a series of rules. Here, we should notice something right away: all of the answers deal with possible dog pairs. This is great for us. We KNOW nearly all of the dog pairs. So, we're looking for a logically necessary deduction about dog pairs. (a) K but not G. Nah. G can have K or S, but there's nothing that says they CAN'T be together. (b) K and S can't be together. Must that be true? Well, of course! If K and S were on the same day, then G and H would be on the same day, and G and H can't be together. So, it MUST be true that K and S can't be together. Our inference showed us that. Either K or S goes to G and the remaining variable goes to H. No brute force needed. 9. Could be True. Should be renamed for students, "Brute force for truth." But our mantra is "Never brute force!" So what do we do? Convert ALL could be true questions to Must Be True questions! Then plug in the condition, deduce, and eliminate options. Simple. Poodle on Tuesday. Right away, we know we'll need those conditionals, since the conditionals tell us about days, but let's plug the condition and deduce. I added the most obvious inference, but let's go over it. Remember that contrapositive? Sure. It said that if G isn't on Tuesday, then K isn't on Monday. So, K must be on Wednesday. Nowhere else for it to go. And the other contrapositive said that if H isn't on Tuesday, then S isn't on Wednesday. So it has to be on Monday. Now, the only thing I don't know is where G and H go. But this should be enough. These are my only deductions. So, let's see how many options we can eliminate: B is out. C is out. D is out. E is out. So our answer must be A. And there was no brute force needed at all! 10. Must be true and local? Money in the bank. Plug the condition, deduce. The first thing the problem did was give us the pairs of dogs. But what we want to know is what DAY goes with each pair. So, we MUST use our conditionals. Right away, we notice something. Our conditionals state that if G is on Monday, then K is on Tuesday. But, G and K are together. So, G can't be on Monday. Likewise, if S is on W, then H is on Tuesday. But S and H are together. So, S can't be on Wednesday. We end up with this: Most students would think that they now have to figure out where everything else goes. But remember, this is a Must be True based on the condition we’re given. This is the most immediate and obvious inference from that condition (and actually, the only full inference). So, before we go hunting for more inferences, let’s stop and see if it’s enough. Lo and behold! E tells us that S cannot be placed on Wednesday. MUST that be true? Yes! So without further work, that’s our answer. Notice that none of this has involved brute force, and all of our choices have been based on immediate, obvious, and straightforward deductions. 11. This is just a Must Be True with a twist. Cannot be true is essentially the same as Must Be True. Only something is logically impossible rather than logically necessary. What this question does is twofold: it gives us dog pairs and it helps with dog days. That is a huge help. So, let's plug the condition and see what we've got. The inferences are pretty clear. If H and S aren't on the same day (because H is the day before S), then we have our dog pairs: H must go with K. That leaves G with S. And of course, our rules state L with P. But we know something else: H/K and G/S are a block. H and S are on consecutive days. So, L/P is either Monday or Wednesday, but obviously not Tuesday. Before we go further, why not test and see if that's one of our answers? It is after all a CANNOT be true, and it CANNOT be true that L/P is on Tuesday, so let's see. We notice right away one particular answer choice: Poodle on Tuesday. That CANNOT be true. Just that quick and we're done. 12. Here's another Cannot Be True. It's also using blocks. Let's plug it in and see: If G is before P/L, then H is either Monday or Wednesday. Why H? Because it's the one variable that we know cannot go with G. Either K or S can, but G and H are not on the same day. So H must be on a different day than the block G/P/L.
So, H is Monday or Wednesday. What day is it not? Tuesday. Cannot be Tuesday. So, let's see if they made it easy for us. Is H one of the options? Sure. A is our answer. See? Never brute force an answer. Think intelligently about the information you MUST be given, and think carefully (but quickly!) about the information you ARE given, and you'll never have to brute force a problem again! Too many of my students attempt to find every inference, diagram every option, and brute force every question. They wonder why they can only complete two or at most three Logic Games before time is called. They plead with me to make them faster at brute force, to give them strategies for diagramming everything, all at once.
I tell them no. You should never brute force a problem. You shouldn't need to. You should never diagram every option. You shouldn't need to. If you do, you're already lost, I tell them. Work smarter, take only what you need. "I can't!" they say, "I'm not good enough!" I've never seen anyone not good enough. I've never tutored someone who just can't draw inferences, or who just can't make deductions. We all make deductions all the time. It's past 6p. The coffee shop closes at 6p. Deduction: the coffee shop is closed. If my wife were home, then her car would be in the garage. Her car is not in the garage. Therefore, she is not home. And so on, and so on. Every day. Deduction upon deduction. We do this all the time. The only thing different about the Logic Games is that it's a closed, finite universe of limited possibilities. And they're weird, unfamiliar possibilities divorced from our everyday. But essentially no different. However, my students don't trust themselves. And sometimes, they don't trust me. When I tell them they should never have to brute force a problem, they stare incredulously, or they smirk, or they think my years of teaching philosophy gives me something they don't have. Until I show them that it's easy. It just takes practice, a little bit of reflection, and a belief that they're good enough. Soon, logic games become fun. And did I mention? Most of my students reach a perfect score on the Logic Games. Imagine that. "My hat must be White." said the third candidate.
"Why?" asked the Chair. "Otherwise, it is not a contest. The game is rigged. Unless you were to whisper the color of the hat in someone's ear as you put it on them, the game could not otherwise be won. There would be no winner. It would be impossible, and thus not a game at all. Just a farce. If I cannot see my own hat, and I can't see anyone else's, then I have no information with which to make the right deductions. I'm guessing, and so is everyone else, for as long as we're in that room and the lights are off. So, I must have everything I need to solve the problem without going into the room. The room doesn't matter since it offers no new information. But you said that this contest could decide the Chair, and that means it must have a winner, and more importantly, someone must be able to actually win through deduction alone. If that's true, then there's only one deduction to be made: the hats on all of us must be White. Three people, three white hats. Everyone with the same hat. The winner is simply the one who deduces that if the game can be won, nothing else is needed. For the only way anyone can win is if everyone could win. All of our hats must be white. The real deduction though comes down to you, and what I think of you. Are you honest? If so, it's a real contest. The game can be won and my hat must be white. You gave everyone a fair chance, and we all had the opportunity to reach the same conclusion I did. Or are you false? In which case the game was a joke. You would have simply told the winner you chose in advance the color of his hat. It all comes down to you." I said in part 1 that this isn't really a riddle at all. It's a point of view. It comes down to how you see the world: honest or false. You have to decide that the game can be won. Once you make that decision, the game is easy. Logic games are no different. I have said to many students many times, the LSAT is not a test. It is an instrument. And so it cannot be false. It must be honest. Every Logic Game must be solvable in under 9 minutes. And it must be solvable without brute force. What you have to do, first and foremost, is believe the game can be won. Won without tricks, won on time, and won by the rules. The game is winnable. It must be. Or else it's not a game; it's a farce. Students don't want to hear this. They want the magic bullet, the promised omniscience. But everything hinges on your state of mind. You have to know the game is winnable, and you have to trust that knowledge. On a quiet evening, my wife and I were sitting with our kitties in front of the fire. Warm, happy, and loved, there was no more perfect time to reflect upon LSAT logic games...
There is a wellknown logic problem. It has many forms, but I like it best adapted to my field. It goes like this: A Philosophy department was seeking a new Chair. There were three candidates for the position (that's how you know it's fiction: there would never be THREE candidates for being Chair. Someone has to be dragged kicking and screaming into the position and kept there with cookies.). To decide the next Chair, the Chairperson declared there would be a logic contest. "I have three white hats, and two black hats," she said. "In a moment, I shall take the three of you into the conference room. I will then place a hat on each person's head, either White or Black. Only, there's a catch. The room is pitch black. The windows are covered, and the light is off. In the darkness, you will not be able to see the hat on anyone else's head, and you will not know the color of the hat that is placed on your own head. The first candidate to correctly identify the color of the hat that MUST be on their own head shall be the new Chair." The Chair and two of the candidates got up from their seats and began to walk into the pitch black conference room. The third candidate remained seated. "Aren't you coming?" asked the Chair. "No need," the candidate replied. "I already know what color my hat must be." Shocked, the Chair gestured for the candidate to proceed. "Do tell," she said. The candidate gave her answer, and was elected the new Chair on the spot. What did the candidate say? (To help, there are no "gimmick" answers or trick responses, e.g. "she said her hat was black because all of the hats are black in a dark room." No nonsense like that. Just standard logic.) I've given this riddle to my classes for years. Not one has ever gotten it right (without Googling it...). What is remarkable is that it is not a difficult riddle at all. In fact, I would argue it's not even a riddle, but a testament to your state of mind. You have to see the world a certain way. And if you CAN see the world that way, you have the most important ingredient in solving logic games quickly and accurately on the LSAT. For the record, Bumblebee growled, Kik threw up, and Echo rolled over. The wife, after two glasses of wine, threw a pillow. That is the sum total of their answers. From the military to business, I often hear versions of the old acronym, KISS: Keep it simple, stupid!
Simplicity is always the problem. Logic games often appear simple upon reflection. Students read "unlocked" logic game solutions, or watch YouTube videos, or buy prep books, and it always seems so simple. Every inference is laid out. All of the connections you missed in the frenzy of the test are now apparent. "Oh, if only I had seen that inference!" I'm reminded of chess. We amateurs marvel at the games of Grandmasters. Their solutions are so elegant, their combinations brilliant. It looks, in retrospect, so simple when the game is laid out before us, commentary in hand. "If only I could see what they see! If only I could calculate moves in advance like the Grandmasters!" Both Alekhine and Reti, two very different Grandmasters, were asked the same question: "How many moves ahead do you calculate when you play?" Alekhine, who was famous for long, brilliant continuations, answered "Twenty." Reti, famous for his irritation, answered "one." Chess amateurs aspire to have the nearly godlike calculative powers of an Alekhine, calculating many moves ahead. Chess masters aspire to be Reti, and calculate only one move ahead. As it is in chess, so it goes in logic games. The prep books and YouTube videos lead you to aspire to godlike powers of insight, able to unfold inferences at a glance. They lead you to think you should find the "truth" of the game, calculating inference upon inference until there is nothing left. Pure, shining insight amidst daunting complexity. If only you could master every inference, every problem would be simple. I think you should want to be like Reti. See only what you need. Find only the inferences necessary to answer the questions. Look one move ahead, and find what is obvious and immediate. Would that not be much simpler? And yet it is so much more difficult. That one move, the right move, is much harder to find and takes vastly more skill. Unfortunately, prep books and videos don't teach you to be Reti. They want you to be Alekhine. What is missing is that crucial step towards mastery: knowing how to find the right inferences, and only those. That is what they don't know how to do. So they throw acronyms at you, and they teach you kinds and types and strategies. But they don't teach you how to see only one move ahead. They don't show you how to find the right move. Echo's sister, Kik, woke me up this morning to ask about diagrams. Early cat catches the mouse, sort of thing. "Mmph Meowrf MEOWFFM Pbbbtt" "Kik, what's in your mouth?" "A pweffent." "What the hell do you have in your mouth? Spit that out." A moment later... "A present! I brought you a present. It's a mouse. Now help me." "That's not a mouse. It's a computer mouse. MY computer mouse, I might add." "Whatever. Same thing. Help me." "Help you with what?" "Diagrams. Echo said you helped him, so I need you to help me. I think I get it, but I need you to take a look. I worked that problem about the scientists, and here's my diagram." "Oh, you mean Logic Game #1, questions 15 from Test 42, Section 1" I said for totally unnecessary reasons having nothing to do with copyright or why I can't show you the specific problem without getting sued. "Yea, nailed it. Good for you. Look..." "Yeah, I see your problem" I said. "But I followed your advice about diagrams! If there's a problem, that's on you." "Well, you did and you didn't. Let me explain..." The test allows approximately 8m45s per logic game. That's not a great deal of time, and so every second counts. Your diagram should use the least amount of effort, and take the least amount of time as possible. So never write out things like Botanist, Chemist, Zoologist. Use abbreviations or better yet, just use the letter with a circle around it. The circle tells you it's a category, not a variable. I do like that you organized the variables by category. Very good thinking. But then you have "5" and "1 of each." That's too confusing. There's a simpler way to represent that only 5 variables are selected and at least one from each category. (See diagram below) But I really don't like how you diagrammed your rules. "Why not?" Kik asked, "They're logically sound representations of the rules, aren't they?" "Yes, they are. And they express exactly what the rule states, which is great. But they're not really usable at a glance. I'm going to have to do work to "convert" these rules into something that allows me to draw inferences and apply those rules to questions. And I'm lazy, like you ("Hey!"), and I don't want to do work  also like you (<shrug>). Taking a little extra time to represent the rules in a logically usable and visually obvious way will save time later on. Here, look at my diagram. "I don't get it," said Kik. "What's so great about this diagram compared to mine?"
Well let's start with speed. I didn't spend time writing out the categories. Circled letters, easy and fast. I didn't write out "1 of each" I just put dashes next to each category. Then I added two out to the side, as well. This tells me that there is one of each category, + 2 from any category. Not only that, but I represented those conditions in a visually obvious way. It's immediately clear how many variables are needed and of what type. Now look at my rules. See, the LSAT wants to confuse you by stating the first rule in terms of Botanists and Zoologists. If you write B and Z, then you have to go back to your variables, look at who is what, then translate the rule. I skipped all of that extra work and just wrote the rule in terms of the variables themselves. After all, it's the impact on the variables that matters for answering the questions. So, my rule says "2 or more of FGH, then 1 of PQR." Yeah, I know the rule states "at most one of PQR" but that's just the LSAT trying to trick me. "At most one" logically means 0 or 1. But it CAN'T mean 0, can it? There must be one of each category, so "at most" 1 means just...one. "But why," asked Kik "did you represent F x K vertically and K x M horizontally?" Because that's how I structured my variables. See, F and K apply to different categories. And I stacked my categories. So, I stack that rule. Why? Because it visually matches how I've organized the problem, and so it is visually easier to reference. And I want it to be as easy and obvious as possible. But K and M are from the same category, so I diagram that rule horizontally. Now, the "If M, then P + R" rule" is a conditional. But why express it as a conditional in logical form? Why not express it as it appears visually in the problem? So I use the curvy F symbol to indicate "If M." (that's my shorthand, and it works for me. use whatever you can draw with your kitty paws). It's important that this rule hinges on M being selected, and I want to represent that. But then I draw it stacked with PR beneath. Why? Because that's how I've organized my problem! At a glance, I can see the conditional. I've done the same with the two inferences at the bottom. There are more inferences, but I just want you to see how I diagrammed them. I diagrammed them to be visually obvious based on my organization of the problem. I don't have to piece the inference together. It's visually available. "You see?" "Yeah," said Kik "but I'm tired. I saw you ironing earlier. I think I'll go nap on your clothes." My oldest cat, Echo, has been studying hard for the LSATs. He's taking it more seriously than the other two. He signed up for a course, but it didn't really help, and there were no treats like there are at home. He's working on logic games, but it's not going well. While taking a break on the cat tree, he said "You know, I feel like it's always just one or two inferences that I miss. If I could just get better at finding those inferences, I know I could do well!" "Hmmmm," I said. "Ok, let me see your diagrams." "Oh, diagrams aren't the trouble. I told you, INFERENCES! INFERENCES!" Frustrated, he went to Mommy for hugs. Ungrateful hairball. So, I dug through his diagrams. I found this: "Yeah," I told him, "the problem is NOT inferences. It's your diagrams."
How can you expect to find the inferences you need if you can't properly organize your information? The logic games give you an enormous amount of information, and the LSAT will test you on ALL of it. To succeed, you need to quickly, accurately, and completely represent that information in visual form. You want to see at a glance all the information contained in the problem. Then you will be able to see inferences. This is especially important because the LSAT tries very hard to confuse you with the information it does give you, and it tries to make it hard to put that information in visually complete form. That's how mistakes... ...hey! put that down! Don't eat that! That's how mistakes happen. "Ok," Echo said, "so what are the features of a good diagram, Mr. SmartyPants?" Well, this will get you started: 1) Organize your diagram around a central, STABLE variable. In Linear problems, for example, this means using the sequence they give you: days of the week, or docking bays, or order of deliveries. Your foundation should be built around the most stable variable. 2) Draw your diagram in a way that visually represents the logic of the problem! If you're organizing stores on different floors in a building, use a vertical diagram. If it's days of the week, use a horizontal diagram, for example. 3) Visually represent the rules as they would appear in your diagram! This makes it easier to understand how the rule functions and how it would fit in your diagram. 4) Always have a master diagram and put as much information in it as you can! If a rule says R is second, then put R in the second place. If it CAN go in your master diagram, put it there. 5) Diagram only what you are given. One of the ways the LSAT gets you to make mistakes is by getting you to make assumptions that seem natural but are not in the problem. For instance, the problem might say, "Six delivery trucks service three buildings K, L, and M, with each truck servicing at least one building." It is natural to assume that each building is served by at least one truck. But in the way it is worded, that is not necessarily true. All six trucks could service only one building and still meet the condition. If the problem said instead, "Six delivery trucks service three buildings, K, L, and M, with each truck servicing at least one building and each building is served by at least one truck," then yes, we know now that all buildings are served, and each truck serves at least one building. "Got it?  hey, wake up!" 
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