Study Tips
Best SAT Prep Books for 2027: What to Buy and Skip
The most expensive mistake in buying SAT prep books is not overspending. It is buying the right title in the wrong edition. The SAT is now digital, adaptive and..
Team Catalyst
8 min readAll Posts
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Study Tips
Breaking the 1400 to 1500 SAT Barrier: What Works
A 1400 looks like a near-perfect score until you see which percentile College Board compares it against. Measured against a nationally representative sample of ..
Team Catalyst
8 min read
Study Tips
December SAT 2026: Deadlines, Fees and Score Dates
The first deadline for the December SAT is not the registration deadline. If your teen needs to borrow a testing device from College Board, the request has to b..
Team Catalyst
8 min read
Study Tips
Revolution Prep vs Catalyst: Which SAT Prep Fits?
Comparing Revolution Prep vs Catalyst Test Prep on price per hour will send you to the wrong answer. The two are not the same product sold at different rates. O..
Team Catalyst
8 min read
Study Tips
How to Estimate Your ACT Score From a Practice Test
Nine of the thirty-six Reading questions on an official ACT practice form do not count. On the form in front of me they are questions one to nine, the whole of ..
Team Catalyst
8 min read
Study Tips
How Many SAT Practice Tests Do You Actually Need?
Nobody runs out of willingness to sit practice tests. They run out of official ones. The real limit on how many SAT practice tests you can take is the supply of..
Team Catalyst
7 min read
AP Exam
Released AP Exams: What Is Actually Available in 2026
The thing most students are looking for does not exist in public. Search for released AP exams and you will find plenty of free-response questions, scoring guid..
Team Catalyst
7 min read
Digital SAT
SAT Student-Produced Response Questions, Explained
A correct answer can still score zero on the digital SAT. Type two thirds as 0.66 and you get nothing; type it as 0.666 and you get the mark. SAT student-produc..
Team Catalyst
10 min read
Study Tips
How Long Is the ACT? Section Times and the Real Total
The short answer: 125 minutes of testing for the three sections that produce a Composite score, or 165 minutes if you add the optional science section. The opti..
Team Catalyst
7 min read
Digital SAT
SAT Math Formulas: What's on the Sheet and What Isn't
Most lists of SAT math formulas make the same mistake. They hand you forty equations and leave you to work out which ones the test already gives you, which is t..
Team Catalyst
8 min read
Study Tips
SAT to ACT Score Conversion: The Official Table
SAT to ACT score conversion is a solved problem. ACT and College Board built the tables together, published them jointly, and admissions offices use them. The f..
Team Catalyst
7 min read
Parent Guide
What Is a Good SAT Score in 2026?
Ask four people what a good SAT score is and you will get four numbers, all of them confidently stated and none of them wrong. The question only has an answer o..
Team Catalyst
10 min read
Parent Guide
Do SAT Scores Still Matter in 2027? An Honest Answer
Ask that question in a room of ten families and you will get ten answers, most of them out of date. So here is the version that survives contact with the actual..
Team Catalyst
7 min read
Parent Guide
Early Decision vs Early Action: Which Should You Use?
Four or five weeks before the first deadlines, most families discover that applying early is not one choice but five, and that the differences between them are ..
Team Catalyst
6 min read