SAT / ACT Prep Online Guides and Tips

Dr. Fred Zhang

Fred is co-founder of PrepScholar. He scored a perfect score on the SAT and is passionate about sharing information with aspiring students. Fred graduated from Harvard University with a Bachelor's in Mathematics and a PhD in Economics.

Recent Posts

ACT Test Dates: Full Guide to Choosing (2019, 2020)

Posted by Dr. Fred Zhang | Mar 31, 2019 2:00:00 PM

ACT General Info

Looking for info on the 2018-2019 and 2019-2020 ACT test dates? Knowing the most accurate ACT test dates is crucial for a solid test-taking plan. Though you might be tempted to go ahead and register for the next possible test date, what you should really be doing is finding a date that works well for you and your schedule.

In this guide, we offer an overview of upcoming ACT test dates, registration deadlines, and score release dates. We also give you tips on how to choose an ACT test date and go over which test dates work best for juniors, seniors, and more.

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SAT Test Dates: Full Guide to Choosing (2019)

Posted by Dr. Fred Zhang | Mar 24, 2019 9:00:00 PM

SAT Logistics, SAT General Info

The SAT is offered seven times a year, but which SAT test dates will work best for you and your schedule? What essential factors should you consider before creating an SAT schedule? What are the best SAT dates for juniors? For seniors?

In this comprehensive guide, we offer you the most current info on SAT test dates (domestic and international) for 2019. We also give you our top tips for choosing the best SAT test dates for you as well as tons of resources to help you navigate the complicated web of SAT/ACT test dates.

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What Is a Good SAT Score? A Bad SAT Score? An Excellent SAT Score?

Posted by Dr. Fred Zhang | Mar 17, 2019 11:00:00 AM

SAT/ACT Score Target

What is a good SAT score? You took the SAT, got your scores back, and now want to know how you did. Or maybe you want to know what score to aim for next time.

In this guide, we discuss how to figure out how your SAT scores stack up against those of all the other test takers. We’ll then help you determine what a good SAT score for you is based on the colleges you are interested in. Finally, we provide the SAT score ranges of 41 popular schools and discuss what to do if your score turns out to be lower than you expected.

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Future Years' SAT Test Dates, Schedules, and Deadlines

Posted by Dr. Fred Zhang | Mar 3, 2019 8:00:00 PM

SAT General Info

Future SAT test dates are only confirmed less than a year in advance, but we at PrepScholar have done the hard work of looking at past test date patterns to predict future SAT test dates and registration deadlines. For 2018-19, the official timetable is set in stone. But even though they're more uncertain, we can predict future years like 2020 and 2021 with decent confidence. These predictions have been updated in March 2019 to reflect the latest possible data.

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ACT Score to GPA Conversion Table

Posted by Dr. Fred Zhang | Feb 3, 2019 6:00:00 PM

ACT General Info

Are you interested in converting your GPA to ACT scores or vice versa? This can be useful if you're trying to estimate your ACT score based on your current grades. In this guide, we've pored over the statistics to give you the information needed to convert between GPA and ACT scores! However, before we get started, let's briefly go over a few caveats.

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Are You Better at the ACT or SAT? Find Out For Sure!

Posted by Dr. Fred Zhang | Feb 3, 2019 12:00:00 PM

SAT versus ACT

Because colleges accept both the ACT and SAT, it can be had to figure out which test to take. The changes to the SAT in 2016 made the two tests more similar than ever, although there are still some significant differences in content and format between the two tests.

So how can you tell if you'll do better on the SAT or ACT? Drawing on my experience as a 99 percentile scorer on both the SAT and ACT, I'll give you a surefire way to figure out which test will result in the best outcome for you.

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When Do PSAT Scores Come Out? The PSAT Results Release Schedule

Posted by Dr. Fred Zhang | Feb 1, 2019 4:00:00 PM

PSAT Info and Strategies

The wait for PSAT results can be nerve-wracking. It's likely your first time taking an SAT-like test, and the PSAT can give you a sense of what range your final SAT score is likely to be. Plus, if you score high enough, there's a lot of potential scholarship money available. 

So when is the wait over? When are PSAT scores released? In this guide, we explain when you'll get your PSAT results, walk you through the complete PSAT timeline, and offer some suggestions on what to do once you have your scores.

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How to Read Our Teaching Explanations (Answers / Solutions)

Posted by Dr. Fred Zhang | Feb 1, 2019 1:00:00 PM

Teaching Explanations

At PrepScholar, we call our answers / solution manuals “Teaching Explanations”, because we believe answers should be geared to teaching you how to tackle the question. This is why we answer your questions in up to four different ways. Let's go over the different types and what they mean.

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Stewart’s Calculus 8th Edition, Section 1.1, Question 3

Posted by Dr. Fred Zhang | Jan 16, 2019 8:00:00 PM

Teaching Explanations

This posts contains a Teaching Explanation.

You can buy Calculus by Stewart here.

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Brown's Chemistry: The Central Science, 15.8 Exercise 1

Posted by Dr. Fred Zhang | Jan 16, 2019 7:00:00 PM

Teaching Explanations

This posts contains a Teaching Explanation.

You can buy Chemistry: The Central Science here.

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Stewart’s Calculus 8th Edition, Section 1.1, Question 2, Pg. 19

Posted by Dr. Fred Zhang | Jan 2, 2019 7:00:00 PM

Teaching Explanations

 

This posts contains a Teaching Explanation.

You can buy Calculus by Stewart here.

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Stewart’s Calculus 8th Edition Section 1.1 Question 1

Posted by Dr. Fred Zhang | Jan 2, 2019 4:00:00 PM

Teaching Explanations

This posts contains a Teaching Explanation.

You can buy Calculus by Stewart here.

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What's a Good 7th Grade ACT / SAT Score?

Posted by Dr. Fred Zhang | Dec 9, 2018 5:48:00 PM

SAT/ACT Score Target

The SAT / ACT is incredibly important for many students.  It's used to determine admissions into talent programs like Duke's TIP or Johns Hopkins CTY.  It's also a good predictor of future college potential.  

But how do you know what a good SAT / ACT score is for someone in middle school?  Here, Dr. Fred Zhang does a novel analysis on two data sets to find what is considered a good score for middle school students.

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What Is a Good ACT Score? A Bad ACT Score? An Excellent ACT Score?

Posted by Dr. Fred Zhang | Oct 3, 2018 3:00:00 PM

SAT/ACT Score Target

If you've taken the ACT and gotten your ACT test scores back, you probably want to know how you did. Or you might be planning for the ACT and want to know what ACT composite score to aim for. So what is a good ACT score?

In this article, we'll discuss what makes a good ACT composite score. We also give you a step-by-step guide to figuring out what a good ACT score is for you personally, depending on the colleges you plan to apply to. We’ll also provide ACT score ranges for 38 popular schools and discuss what you can do if you fall short of your goal score.

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SAT International Test Dates Guide (2018 and 2019)

Posted by Dr. Fred Zhang | Aug 23, 2018 5:00:00 PM

SAT General Info


Here we look at international SAT test dates for the the 2018–2019 year. The test months haven't changed since last year, but the dates have! We've recorded what we've learned in this article.

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