Vocab help!

<p>Hi I am going into sophomore year. I am scoring around 600 in math and 500 in CR and 550 in writing. I NEED to improve all my sections. I think I'm going to be good in math because I haven't taken geometry yet. People say to memorize 10 words or even 50 words a day! I don't know how to do that. How should I study the words and how should I try to memorize. How much time a day should I put into vocab. Please help!</p>