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<p>Choose whichever 4 are most important to you. See if there’s an option to include an additional supplement, such as a resume, if you want to include everything. You could also just use the common app instead if you want to be able to list more comprehensive information.</p>
<p>And I’m not sure how you’re confused on how to fill in the application—sections like “positions held,” “grade level,” “approx. time spent,” etc—sound self-explanatory.</p>
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<p>You don’t have to write an actual essay when describing your summers. Just do it short answer style (for example, "From 2007-2008 I attended a program at…In June 2009 I worked at…, etc) with about a paragraph per summer depending on the word limit.</p>
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<p>If you’ve won any awards from work in your ECs or in school, put them down. Again, not hard.</p>
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<p>Write FROM THE HEART. :D</p>