SAT / ACT Prep Online Guides and Tips

Geometry is the branch of mathematics that deals with points, lines, shapes, and angles. ACT geometry questions will test your knowledge of the shapes, sizes, and volumes of different figures, as well as their positions in space. 33% of ACT math problems (about 18 questions total) will involve geometry, depending on the particular test.

Because geometry as a whole covers so many different mathematical concepts, there are several different subsections of geometry (including planar, solid, and coordinate). We will cover each branch of geometry in separate guides, complete with a step-by-step approach to questions and sample problems. 

This article will be your comprehensive guide to solid geometry on the ACT. We’ll take you through the meaning of solid geometry, the formulas and understandings you’ll need to know, and how to tackle some of the most difficult solid geometry questions on the ACT math section.

Geometry is the branch of mathematics that deals with points, lines, shapes, and angles. SAT geometry questions will test your knowledge of the shapes, sizes, and volumes of different figures, as well as their positions in space.

25-30% of SAT Math problems will involve geometry, depending on the particular test.

Because geometry as a whole covers so many different mathematical concepts, there are several different subsections of geometry (including planar, solid, and coordinate). We will cover each branch of geometry in separate guides, complete with a step-by-step approach to questions and sample problems.

This article will be your comprehensive guide to solid geometry on the SAT. We’ll take you through the meaning of solid geometry, the formulas and understandings you’ll need to know, and how to tackle some of the most difficult solid geometry problems involving cubes, spheres, and cylinders on the SAT.

We have all the information you need about SAT Subject Test (also known as SAT II) dates in 2015 and 2016. While the SAT Reasoning Test (aka the SAT I) changed dramatically in 2016, the Subject Tests didn't have any large changes in terms of content. The exam dates of the SAT Subject Tests, however, were affected. Read on to find out more!

Note: This guide covers 2015-16 only; for the current year's SAT Subject Test dates, click here.

It's the week or the day before your big SAT test date, and you want to have the best chance possible at raising your score. At PrepScholar we've written hundreds of free guides to help you succeed on the test, but some guides are especially helpful right before your test.

Are you ready for more grammar fun? Pronoun case is a grammar rule that is regularly tested on the SAT. You know the drill: Learn the SAT Writing rule and you'll raise your score.

In this article, we shall delve into the fun-filled world of subject-verb agreement on the ACT. Subject-verb agreement questions on ACT English are less common than punctuation questions; however, you can count on having at least a couple of subject-verb agreement on your ACT English section, so understanding this grammatical rule can easily help you improve your ACT English score.

While the grammar rule itself is relatively simple, the questions related to it can be challenging and a bit tricky. In this article, I’ll teach you strategies and tips to become a master of all things subject-verb agreement on the ACT.

Applying to colleges can be a long and difficult process. You have to fill out a bunch of applications, write long essays, get letters of recommendation, and so many other things. It's almost impossible to keep track of everything. That's why we've put together this handy infographic full of helpful tips and pointers. Find out just how difficult it is to apply to colleges, where you should focus your attention, and learn how to avoid the most common mistakes. We want to give you the best shot at getting accepted to you top-choice colleges, so continue reading and get a jump start on your application!

In every section on the ACT, there are some questions that are more difficult than the others. Science is no different. However, unlike the math section, where the questions progress from easy to hard in a linear fashion, each of the 7 passages tends to have 1-2 hard questions that can appear at any point in the passage (though they tend to be the last questions of the passage).

These problems may seem challenging at first glance, but they're really just slightly more challenging than the others if you use the right ACT Science strategies and tips that we'll be covering in this guide. 

Reading graphs is like reading in a foreign language. It comes easy to some and is very difficult for others. If you struggle to understand graph, tables, and other visuals for ACT Science questions, this article containing tips, strategies, and practice questions is perfect for you.

If you're a “fluent” pro, this article will be a good review to make sure your skills are on point. Even if you are a pro, the ACT Science section often tests the basic skill of reading visuals in new and challenging ways, so this article will make sure you have strategies for both easy and hard questions.

Not sure whether it’s a good idea to register for the next SAT or ACT test date? You should consider how many times you've taken the test before, how busy your schedule is right now, and how much you've prepared for the test before making a decision. We'll explain why.

Here are a few questions you need to ask yourself before signing up for the next date.

What can you do if you took the SAT already but you decide you want to cancel your test scores?

First, stop and take a step back. Ask yourself if you’re sure. Once you cancel your test scores, there's no going back.

Second, figure out - can you still cancel your scores? CollegeBoard has a very strict deadline about this and if you miss that deadline, then they won't budge.

So what can you do? Well, I'm here to help you 1) assess whether you should cancel; 2) know what steps you need to take to cancel; and 3) know what to do if you miss the deadline to cancel, but still need to deal with a poor score.

If you’re a sophomore or junior in high school, it's about time to start exercising your standardized testing muscles. This is especially true if you're hoping to get into very selective colleges or improve significantly from your PSAT scores.

Read on for advice on how to create an effective study plan for the SAT or ACT starting in sophomore and junior year.

You don't want to walk in the morning of the ACT only to find you have to take the test on a super-tiny desk.

If you're preparing for the ACT, you've probably spent a lot of time studying and getting ready for the test. But you probably haven't given that much thought to the physical location of your test (especially if you're taking it as a part of your state’s mandatory testing).

However, the place you take the ACT could definitely affect your performance. Read our guide to choosing the best possible ACT test location so you can knock it out of the park.

While you're doing a lot to prepare for the SAT, you probably haven't given that much thought to the physical location of your test. However, that location could definitely affect your performance.

Think about it – have you ever had to take a test in a cramped classroom or in room without air conditioning? It probably didn’t exactly help your performance. So why would you take the SAT in sub-optimal conditions?

Read our guide to choosing the best possible test location so you can do as well as possible.

Image via College Board.

The SAT was revamped in March 2016 in an effort to make it more modern and accessible. If you’re a current high school student, you’ve probably heard about this change.

If you’re a current senior (Class of 2017) or junior (Class of 2018) this raises some questions. What if you took the SAT before it changed last spring? Will colleges still accept scores from the "old" SAT? Or will they require you to take the new SAT? This has big implications for how you prep, when you take the tests, and possibly even whether you should switch to the ACT.

In this exclusive, first of its kind breakdown, we personally spoke to admissions counselors from dozens of colleges to get some real answers on how they will handle the transition.