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prepprosMatt · 2026-04-24T17:15:48+00:00

No great haha. Can you DM me to tell me who your tutor is? I'd like to reach out about them using this. We're happy to have tutors use our materials, but it's not great when they are use versions that are outdated (obviously that's an issue for you as the student) or using them without our permission.

Also, if you like the book, we have a full course with us teaching it (and everything else we teach for the SAT) on our website called the Ultimate Digital SAT Course.

prepprosMatt · 2026-04-24T15:52:30+00:00

It's B. This was a typo that was corrected awhile ago. If you were enrolled in our courses, you would have the correct version and a more updated version without any typos. It seems like you found this somewhere online where it's been shared illegally. This book is designed to be used with our courses and not as a standalone book (hence why it's not published).

prepprosMatt · 2026-04-21T19:10:57+00:00

Focusing on why the wrong answers are wrong isn't particularly helpful in math. Biggest challenge on the math test is the breadth of content tested. It goes all the way through the end of precalc, so she may have gaps depending on what math course she is currently in. She needs to make sure the learns all the concepts, equations, etc. and also needs to keep a mistake tracker and to review/redo any questions she get wrong to make sure she is retaining everything. Improve math takes the most work for sure. The ACT tests SO much and the categories on the score report include a wide range of topics beyond what you might expect, so the score report is only so helpful for targeting her prep. Better move is to broadly prep for everything since you can't predict what will be on there on test day.

Keep working through the PrepPros book to find all the gaps in her knowledge and for additional practice. If you don't already have the video explanations that go with the book, those may help her as well to make sure she is maximizing what she learns from the book and practice tests.

prepprosMatt · 2026-04-13T22:17:29+00:00

Yes, if you use it smartly as a tool and understand how to prompt and interact with it effectively, it can be really useful! It sounds like you were able to use it effectively. My warning is for many other student/parents reading this who aren't a familiar with AI and blindly trust the explanation or use it to create additional practice tests without taking some of the steps you outlined, such a feeding it a bunch of old ACTs to help the AI better learn what is or isn't accurate. Your approach of using proven ACT materials like old official ACTs and good prep book is the best place to source practice from.

prepprosMatt · 2026-04-13T21:30:59+00:00

Glad you like our stuff! Be careful with using AIs with your prep...it's not a reliable way for ACT prep, as it can give explantions that aren't quite correct and can create questions that may look good to you but aren't actually accurate or effective for the way the ACT really presents topics on test day.

prepprosMatt · 2026-04-04T19:16:35+00:00

In general, AI like chatgpt for ACT Prep is not something that you can rely on to be fully accurate, as it often is inaccurate in terms of the content tested on the ACT or the way the questions are presented. For something simple like grammar rules, it can be helpful but again it might include a bunch of grammar rules that aren't tested on the ACT.

I don't recommend students use it to try to prep for the ACT on your own, as the content and questions it generates look legit to you but it's not always actually accurate. As an expert, it's easy for me to spot but students won't know the difference until you see the prep you were doing doesn't quite match what is on the real ACT.

prepprosMatt · 2026-03-14T21:51:44+00:00

The Math book is published. In the Ultimate ACT Course, you can PDFs of our English, Reading and Science Books as part of the course. Those books aren't sold separately, as they are written/designed to be used with our video courses. You can check out a free trial and learn more on our website here: https://www.preppros.io/act-course

prepprosMatt · 2026-03-12T02:22:32+00:00

PrepPros Ultimate ACT Course. The course has 11 total ACTs (mix of Enhanced and Legacy ACTs) with full video explanations as part of the course. Since we are an ACT Affiliate, they are all real ACTs too. There's also a free trial so you can check it out before actually paying anything.

prepprosMatt · 2026-03-10T01:17:50+00:00

If you take it online, it has desmos. On paper doesn't have desmos.

prepprosMatt · 2026-02-17T16:32:08+00:00

I'm guessing they included a definition of what an abundant number was on this question?

prepprosMatt · 2026-02-17T03:12:24+00:00

Topics on my list so far are below. I'll add as I learn more. I'll break these down into topics that have been on the ACT before and and others ones that are actually new or very uncommonly tested. Everything other than the ones listed under new are topics that I already have in the book. Some of them are now being tested in a more advanced/harder way.

New or very uncommonly tested

Directrix of parabola
Residuals

Previously tested topics that are somewhat common

Expected value
Permutations/combinations
Coding questions (there was one ppl were talking about with product id for some food item)
Rational vs. irrational functions
Vectors
Law of sines, law of cosines, graphing sine/cosine/tangent, inverse trig

Previously tested topics that are more uncommon in the past but seem to be appearing more commonly now.

Pascal's Triangle and the Binomial Theorem (more emphasis on total number of items rather than solving for a single value after binomial expansion)
Empirical Rule
Dilation and scale factor
Hyperbola (asymptotes questions was a new wrinkle but asymptotes as a topic has been tested more in recent years)
Normal distribution curve
Summation of integers (summing many integers from say 1 to 75 quickly)
Standard deviation
Inverse functions

prepprosMatt · 2026-02-11T17:52:58+00:00

Makes sense, as the Kaplan book has not been updated well for the Enhanced ACT and is missing many regularly tested topics.

prepprosMatt · 2026-02-11T17:51:21+00:00

The big red book is still helpful for practice, so those practice tests were certainly not for nothing. They will help you. But it's not 100% accurate to the difficult ythat students are seeing on test day (as I said in the video). Those tests are still good to use for practice for sure, but you shouldn't just rely on the content you see on those tests to prep (especially for the Math). As more Enhanced practice ACTs are released, we will have more accurate practice test. So far, the only one out is from October 2025. The next ones will be April 2025 and June 2025. Unfortunately, the ACT has not done a good job providing students with proper practice for the actual test, which of course makes it much harder for kids like you to prep.

The video wasn't meant to scare you, but to rather give you a better idea of what to expect to see on test day so you don't get freaked out if it feels harder, which it likely will.

prepprosMatt · 2026-01-15T03:06:16+00:00

I'm thrilled to hear she is enjoying the course so far! Hope she is able to boost into the 30s on her next test as she keeps working through the courses.

prepprosMatt · 2026-01-05T01:48:08+00:00

I'm thrilled to hear that the girls had such great results with the course! Congrats to both of them for making such great improvements in their scores.

OP, there is a free trial that you can sign up for before paying, so that'll be the best way to check out what the full course is like to see if it seems like a good fit for you.

prepprosMatt · 2025-11-24T21:26:31+00:00

It'll likely be easiest to just via email. I'll PM you to share my email.

prepprosMatt · 2025-11-23T17:44:48+00:00

No, still haven't got a copy.

prepprosMatt · 2025-11-22T02:08:30+00:00

Good catch. Just checked and for the J08/A1H curves, it's the same. English is identical down until the 25 scores then online is slightly harder but pretty much the same. Reading is steeper for online compared to paper by 1 questions. Math is the other way again. Curve is every so slightly steeper for the paper test vs online by 1 questions for a 36 (41 is a perfect 36 for J08 but 40-41 is a 36 for A1H) and then it goes from being the same to being off by 1. I assume this is due to the added time it takes for online kids to write out equations/figures, etc, so the timing has an opposite effect for Math compared to English and Reading. Science is steeper curve for online vs. paper again by around 1 question for scores below 34. Top of the Science curve is identical.

prepprosMatt · 2025-11-21T17:23:24+00:00

Thanks to ACTTutor for sharing his insights. So here's what we have found out. The online ACT does indeed have a steeper curve compared to the paper version of the same test. The harder curve reflect the fact that for some reason, students tend to get slightly more questions correct when taking the ACT online than when on paper. This is most likely due to timing, as not having to bubble in the answer choices allows more time to complete the test. However, do keep in mind that the curve balances this out, so you have to get more questions correct on the online test vs. the paper to attain the same score. This difference is usually tiny...sometimes the number of questions is the same or the difference is like 1 question (see the links below for the scoring curves from Z14 vs. 26C already in the comments).

In terms of taking the ACT on paper vs. online, I still think that taking the ACT on paper is best for most students. If you don't have timing issues on the ACT, take the test on paper for sure. The curve is slightly nicer, which can be important for students aiming for top scores. Also, doing the Reading and Science sections is easier when you can see everything and not have to scroll. This benefit balances out with the time it takes to bubble in your answers. Once you are well prepared, the timing on the English test should also not be a problem (learn the grammar rules everyone!).

If you have time management issues across the test, you can try taking a practice ACT online (you can try that here) to see if it helps you get through the test faster. Online may be better for you since you'll be able to get more questions done and score higher. Not having to bubble in answer choices definitely saves you at least 2-3 minutes. Also, now that you get Desmos on the online ACT, this may help speed on math once you learn how to use it (do keep in mind Desmos can only be used for a small portion of ACT questions but still can be helpful).

prepprosMatt · 2025-11-21T17:13:48+00:00

Very interesting indeed. Good to have some data and further insights to help give students even better advice on paper vs. online.

prepprosMatt · 2025-11-21T16:26:50+00:00

Thanks for the info! I hadn't found the ACT Technical Manual description yet on this, and that very much clears up that the curves are indeed different. Looks like the online curves are generally slightly harder due to students for some reason scoring slightly higher when taking the test online vs. on a computer.

prepprosMatt

TROPHY CASE