Ask any high school junior what stresses them out most, and there’s a good chance they’ll say the SAT or ACT. If you’re one of the many students typing things like studyd into a search bar late at night, looking for a way to get your prep organized, you’re in the right place. The good news is that entrance exams are much more predictable than they feel. Once you know the format, build a plan and practice in the right way, the whole thing becomes far less scary.
I’ll walk you through it the way I’d explain it to a younger sibling, step by step and without the jargon.
Start With the Basics: SAT or ACT?
Most US colleges accept both tests, so you aren’t locked into one. They just work differently, and that’s worth understanding early.
The SAT is now fully digital. You take it on a laptop or tablet using the College Board’s Bluebook app, and it lasts a little over two hours. There are two sections, Reading and Writing, and Math. Each section is split into two modules, and the test adapts. If you do well on the first module, the second one gets harder, and the other way around. The score range is 400 to 1600.
The ACT was updated in 2025. The core test (English, Math and Reading) got shorter, running roughly two hours, and the Science section became optional. If you skip Science, your composite score is based only on the other three sections. It’s scored from 1 to 36. In many places you can choose between paper and computer, and unlike the SAT, the ACT isn’t adaptive.
Formats and details can shift, so always confirm the latest information on the official College Board and ACT websites.
Find Out What Your Colleges Want
Before you invest weeks into studying, check the testing policy of every school on your list. This takes about twenty minutes and can save you a lot of trouble.
Some schools require scores. Others are test-optional, which means you decide whether to submit them. A few don’t consider scores at all. Policies change from year to year, and some well-known universities have brought back testing requirements recently. The admissions page on each college’s own website is the only reliable source.
Even where scores are optional, a good one can still help, especially for scholarships and competitive majors. If you’re aiming for a strong application, taking the test is often a smart move.
Pick the Test That Fits You
Forget the rumors you’ve heard in the hallway. Here’s a better method: take a full-length, timed practice test for both exams and compare.
Ask yourself a few questions afterward. Which one felt more natural? Did the speed bother you? Did you like the shorter reading passages on the SAT, or the straight-ahead style of the ACT? If you love charts and data, the optional ACT Science section might let you show that strength, particularly if you’re applying for a STEM program.
Choose the test you scored better on and felt more comfortable with. Then stick with it. Switching back and forth burns time you could spend improving.
Set Your Target Score
A goal without a number is just a wish. Look up the middle range of admitted students at each school you’re considering. Most colleges publish these figures. If your dream school’s middle range is 1300 to 1480 on the SAT, then aiming for the 1400s is a sensible target.
Then take a practice test with no preparation. This is your baseline. The distance between your baseline and your target tells you how much time you need. A small gap might take a few weeks. A big one may need three to four months of steady work.
Build a Study Plan That Fits Your Life
You’re not a full-time test-prep machine. You have classes, homework, maybe a job or sports. So your plan has to be realistic.
Here’s a rough timeline you can adapt:
- First two weeks: Take a diagnostic test, review every mistake, and note where you’re losing points.
- Next six to eight weeks: Work on weak areas. Study grammar rules, algebra concepts and reading strategies in short sessions of about an hour.
- Following two to three weeks: Take full practice tests under real conditions, on weekends, with strict timing.
- Last week: Review, rest and stay calm.
Studying four times a week for an hour beats cramming for eight hours on a Saturday. Your brain keeps what it revisits regularly. If you can, put your study sessions on a calendar so they feel like real appointments.
Choose the Right Practice Tests
Where you get your practice material matters. Official sources are always your best bet because they match the actual exam.
For the SAT, the Bluebook app has full-length digital practice tests that look and feel like the real thing. College Board also offers free lessons and practice through Khan Academy. For the ACT, ACT.org provides free official materials, including updated ones for the new format.
A quick warning about old prep books. If a book was written for the paper SAT or the pre-2025 ACT, parts of it may be outdated, especially the timing and structure. If you do use third-party materials, check that they were updated recently.
And practice the way you’ll test. If you’re taking the digital SAT, practice on a screen. Get used to the built-in calculator, the flagging tool and the timer.
Keep an Error Log
This is the single most underrated study habit. Every time you miss a question, write it down in a notebook or a simple spreadsheet. Record what the question tested, why you missed it, and what you’ll do next time.
Why you missed it matters most. Was it a knowledge gap? A careless slip? Did you misread the question or run out of time? After a few weeks, you’ll see patterns. Maybe it’s always commas, or percentage problems, or the last few questions of the reading section. Now you know exactly what to fix, instead of studying everything equally.
Strengthen Each Section
Reading and Writing. For reading passages, figure out the main idea and the author’s tone before you tackle the questions. For grammar, learn the common rules well: subject-verb agreement, punctuation, pronouns, verb tense and sentence structure. These repeat constantly, and they’re easy points once you know them. Reading articles, essays and books in your free time helps too, because it builds speed and vocabulary naturally.
Math. Both tests lean heavily on algebra, plus geometry, data analysis and some trigonometry. If your basics are shaky, go back to linear equations, systems, quadratics, ratios and percentages first. The digital SAT gives you a graphing calculator inside the test, so learning how to use it can save time. Still, understand the logic behind the answer, don’t just punch in numbers.
ACT Science (optional). This isn’t about memorizing facts. It’s about reading graphs, tables and experiments quickly. Practice interpreting data and you’ll do fine.
Essay. The SAT has no essay, and the ACT’s writing section is optional. Check whether any of your schools want it before you spend time on it.
Learn a Few Test-Taking Tricks
Strategy can add points without any extra studying.
- Never leave a blank. There’s no penalty for wrong answers, so always guess.
- Eliminate wrong choices. Crossing out two options makes your odds much better.
- Skip and come back. Flag tough questions and keep moving. One problem shouldn’t swallow three minutes.
- Know your pace. Use practice tests to learn how long you spend per question.
- Stay calm on the adaptive SAT. If the second module feels tougher, it often means you did well in the first.
Solid time management during the exam is a skill you build, just like algebra.
Register Early and Pick Smart Dates
Registration usually closes about a month before each test date, and popular locations fill up. Check the official sites for current dates, fees and deadlines, and register as soon as you’re ready.
Many students take the test for the first time in the spring of their junior year. That leaves room for a retake in the summer or fall of senior year. Lots of colleges “superscore,” meaning they combine your best section results from different test dates, so a second attempt often pays off. Policies vary by school, so check.
If money is tight, talk to your school counselor about fee waivers. Eligible students can take the test for free and send score reports to colleges at no cost.
Don’t Ignore Your Health
This part gets skipped in most guides, but it matters. A tired, stressed brain doesn’t perform well.
- Get a solid night’s sleep, especially the two nights before the exam.
- Eat a real breakfast on test day, and bring a snack and water.
- Take short walks or stretch breaks between study sessions.
- Practice slow breathing if you get nervous.
Burnout is real. If you push yourself until you hate studying, your results will suffer. Build rest days into your plan and treat them as part of the process.
The Final Week
Resist the urge to learn lots of new content. Instead:
- Take one last practice test early in the week and review it lightly.
- Redo the questions in your error log.
- If you’re testing digitally, charge your device and make sure your testing app works.
- Pack your admission ticket, photo ID, an approved calculator, snacks and water.
- Check the route to your test center and how long it takes.
The night before, do something relaxing. Go to bed at a normal time.
On Test Day
Arrive early and take a few deep breaths. If one section goes badly, let it go. You can’t change it, so give the next section your full attention. Trust your preparation, because you’ve put in the work.
Scores usually come out in a couple of weeks. If they’re not what you hoped for, look at your error log, adjust your plan and decide if a retake makes sense. One test day doesn’t define you.
Final Thoughts
Getting ready for college entrance exams is a lot like training for a sport. You learn the rules, practice regularly, review your mistakes and rest before the big day. Check what your colleges require, pick the test that suits you, and build a plan you can actually follow.
You don’t need to be perfect. You just need to start. Take a diagnostic test this week, write down your target score and block out your first study session. That small step is the hardest, and everything after it gets easier.