Take campus tours online or in person to further narrow your list of colleges to match your personality, GPA, and test scores.
Register for the March SAT and/or the April ACT tests. Find out from each college the deadlines for applying for admission and which tests to take. Make sure your test dates give colleges ample time to receive test scores. It is a good idea to take the SAT and/or ACT in the spring to allow you time to review your results and retake the exams in the fall of your senior year, if necessary.
Take the March SAT Reasoning Test.
If you are interested in taking any AP exam(s), you should sign up for the exam(s) at this time. If your school does not offer the AP exams, check with your guidance counselor to determine schools in the area that do administer the exam(s), as well as the dates and times that the exam(s) you are taking will be offered. Scoring well on the AP exam can sometimes earn you college credit.
Take the April ACT test.
Talk to teachers about writing letters of recommendation for you. Think about what you would like included in these letters (how you would like to be presented) and politely ask your teachers if they can accommodate you.
Take the SAT Subject Tests, SAT Subject Tests, and AP exams.
Add any new report cards, test scores, honors, or awards to your file. Visit colleges. Call ahead for appointments with the financial aid, admissions, and academic advisors at the college(s) in which you are most interested. During your visits, talk to professors, sit in on classes, spend a night in the dorms, and speak to students about the college(s). Doing these things will allow you to gather the most information about the college and the atmosphere in which you would be living, should you choose to attend. Some colleges have preview programs that allow you to do all of these; find out which of the schools that you will be visiting offer these programs and take advantage of them.
Take the SAT Reasoning Test, SAT Subject Tests, and ACT tests.
If you go on interviews or visits, don't forget to send thank you notes.