SAT / ACT Prep Online Guides and Tips

Christine Sarikas

Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

Recent Posts

ACT Test Dates 2020-2021

Posted by Christine Sarikas | Sep 3, 2019 12:00:00 PM

ACT Logistics

At PrepScholar, we know how important it is the pick the right ACT test date. Choose a date too early and you won't have enough time to study, but choose a date too late and you may not be able to retake the exam if needed or get your scores sent to schools on time.

In order to make choosing an ACT test date easier, we constantly review the best data to inform you about future test dates. When you know future ACT registration and exam dates, you can create your study plan and stay organized, allowing you to lessen your stress and reach your target score.

In this article, we give you the anticipated ACT test dates for 2020-2021 and explain the key factors to think about when choosing your test date.

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The 13 Original Colonies: A Complete History

Posted by Christine Sarikas | Aug 27, 2019 4:00:00 PM

General Education

You’ve likely heard of the 13 original colonies, but how much do you know about them? When were they created, why were they created, how did they gain their independence, and which states did they become? In this guide, we cover all the important and interesting facts about the 13 colonies, including the official name of each colony, when it was founded, and the role it played up to and during the Revolutionary War. We also give background on the colonies and explain how they eventually became independent states.

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Flashcards: The Ultimate Guide to Making and Using Them

Posted by Christine Sarikas | Aug 27, 2019 12:00:00 PM

General Education

Flashcards are an extremely common study tool and, if used correctly, can be one of the most effective ways to learn new information. However, you may not be using them the best way which can reduce how much and how quickly you learn. Want to be an expert flashcard studier? This is your guide! We’ll cover exactly what makes flashcards such a good study tool, where you can make your flashcards, the absolute best method for studying them, and tips to avoid common flashcard pitfalls.

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7 Steps to a Successful MIT Application

Posted by Christine Sarikas | Aug 25, 2019 12:30:00 PM

College Admissions, College Info

In 2018/2019, MIT admitted only 6.7% of students who applied to the school. With such a low admissions rate, it may seem like getting accepted is close to impossible, but we're here to help!

In this guide, we'll explain everything you need to know to complete the MIT application, including when every important MIT application deadline is, what exactly you need to submit with your application, what admissions officers are really looking for when they review your application, and how you can make each part of your MIT application stand out from the pack.

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4 Tips for Writing a Stand-Out Why UChicago Essay

Posted by Christine Sarikas | Aug 25, 2019 12:00:00 PM

College Essays

For students applying to the University of Chicago, the "Why UChicago" essay is more straightforward than most of the other essay prompts you'll see, but it can still be intimidating to try to figure out how you should tackle this essay.

What should you mention? What will impress the admissions team? What are they really looking for in your response?

We break down the why UChicago essay, explain everything the University of Chicago is looking for in this essay, suggest topics to write about that'll help you stand out, and give why UChicago essay examples to help get your creative juices flowing.

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7 Steps to a Successful Georgetown Application

Posted by Christine Sarikas | Aug 25, 2019 12:00:00 PM

College Admissions

Georgetown University is one of the most selective universities in the country—less than 12% of students who applied during the 2018/2019 school year got accepted. However, understanding the application and what Georgetown admissions officers are looking for when they review your application can give you a serious leg up over the rest of the competition.

In this guide, we go over everything you need to know about the Georgetown University application, including what you need to submit, every Georgetown application deadline, what admissions officers are looking for when they review applications, and how you can make each key part of your application stand out from the pack.

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The 5 UC Application Tips You Need to Get Into University of California

Posted by Christine Sarikas | Aug 25, 2019 11:00:00 AM

College Admissions, College Info

If you’re applying to one or more of the UC schools, you want to make sure you get the application right. This step-by-step guide will walk you through everything you need to know about the UC application, from the time you decide to apply to a UC school to when you submit the final piece of the application.

Keep reading to learn when the most important UC application deadline is, which documents you need to submit to complete your application, if you need a separate application for each UC school, and how you can make sure every part of your application sets you apart from the crowd.

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10 Key Differences Between Mitosis and Meiosis

Posted by Christine Sarikas | Aug 19, 2019 2:00:00 PM

General Education

Getting mitosis and meiosis confused on a biology exam can cost you a lot of points, so it's important to keep these two cellular processes straight. In this guide, we break down mitosis vs meiosis, explain each of the processes, and lay out their similarities and differences so that you’ll be able to easily explain what each process does and how the two differ.

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17 Great Teaching Tools for Organization, Assessment and More

Posted by Christine Sarikas | Aug 19, 2019 12:00:00 PM

General Education

If you’re a teacher, you’re already doing a lot, but luckily there are many tools available to make your job a little bit easier. Teaching tools can help with everything from creating quizzes to promoting good behavior, and many educators find them incredibly useful.

Practically anything can be a teaching tool; a handful of Post-It notes can be a tool if they help you with tasks like figuring out seating arrangements or keeping track of your calendar. However, for the purposes of this guide, we define teaching tools as an online resource that helps teachers with any aspect of their job. Read on to learn what tools for teachers can do and to read descriptions of 17 of the best teaching aids out there.

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The Expert's Guide to the AP Calculus AB Exam

Posted by Christine Sarikas | Aug 18, 2019 10:00:00 AM

Advanced Placement (AP)

Are you taking the AP Calculus AB exam this spring and want to be well prepared on test day? The AP Calculus AB exam in 2020 will be held on Tuesday, May 5, at 8 am.

Before you sit down to take the exam, though, it’s critical that you know how the Calculus AB test is formatted, what topics it covers, and how you’ll be scored on it. This guide will go over all of that information while also showing you official sample problems and giving you tips on the best way to prepare for AP Calculus AB. 

The exam was updated in May 2017, so this guide will explain what changes have been made and how they might affect your review. The AP Calculus AB exam can sometimes seem overwhelming, but we're here to break it down into clear and manageable information for you. You can also check out CollegeBoard's new AP Classroom tool for AP Calculus AB, which has additional resources and information. Let’s get started!

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11 Fun Toddler Learning Games for Your Preschooler

Posted by Christine Sarikas | Aug 11, 2019 5:00:00 PM

General Education

Looking for games that your toddler will both enjoy and gain important skills from? We’ve got you covered! In this guide, we go over 11 of the best toddler learning games. These educational games for toddlers can be played with few materials, one or more children, and toddlers of varying age ranges. For each game, we explain what skills it will teach toddlers and give instructions on how to set up and play the game.

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How Many Zeros in a Googol? A Googolplex?

Posted by Christine Sarikas | Aug 5, 2019 3:00:00 PM

General Education

What’s a googol, and does it have any relation to that similarly-named website? And what about a googolplex, how many zeros does it have? In this guide, we’ll give you googolplex and googol definitions, show how you can write them out, explain how they’re useful, and give examples on how you can start to understand huge numbers like these.

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The 22 Key Alchemy Symbols and Their Meanings

Posted by Christine Sarikas | Aug 1, 2019 1:00:00 PM

General Education

Have you seen images of alchemy symbols and want to know more about what they mean? Alchemy element symbols have been around for centuries, and people are often interested in them because they contain some of the mystique the field of alchemy does.

But what do those symbols mean? And how were the elements they represent used by alchemists? In this guide we’ll give a background on alchemy and alchemy symbols, then we’ll cover every major alchemy symbol, including what it stood for, the properties it was associated with, and any interesting facts that go along with the alchemy symbols and meanings.

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What Is Commensalism? Definition and Examples

Posted by Christine Sarikas | Jul 30, 2019 2:00:00 PM

General Education


Are you studying commensalism in biology class and looking for a good commensalism definition? Commensalism is one of the trickier types of symbiosis to understand, but we'll break it down for you. Read this article to discover what commensalism is, the different types of commensalism, commensalism examples in nature, and the other types of symbiosis and how they differ from commensalism.

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What Is a Vacuole? Understanding the 4 Main Functions

Posted by Christine Sarikas | Jul 29, 2019 1:00:00 PM

General Education

What is a vacuole and what does it do? A vacuole is a structure found in animal, plant, bacteria, protist, and fungi cells. It’s one of the largest organelles found in cells, and it’s shaped like a large sac. Vacuoles have a simple structure: they are surrounded by a thin membrane and filled with fluid and any molecules they take in. They look similar to vesicles, another organelle, because both are membrane-bound sacs, but vacuoles are significantly larger than vesicles and are formed when multiple vesicles fuse together.

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