Using your pencil and highlighter to diagram the content on logical reasoning questions provides an enormous benefit with very little effort and time. Many test-takers try to save time by keeping all the information that they read in their brains. However, their brains soon become overloaded and headaches and confusion ensue. Instead, try using the following tips to help your mind keep track of all the information that it must keep track of during the LSAT.
When reading an argument, as soon as you have determined the author's primary conclusion, highlight it:
After you have determined the conclusion, determine what the premises are and make a note of them by placing parentheses around them and numbering them:
Diagramming helps you to separate the material that you should focus on from the information that you need not concern yourself with so much (if at all). Much information on the LSAT is either introductory material to help you understand the argument, or simply excess information that will throw you off analyzing the argument's structure.