The ACT English section is 45 minutes long with 75 questions across five passages, giving you approximately 9 minutes per passage. You must identify and correct errors in grammar, punctuation, sentence structure, and rhetorical style. Students who master the high-frequency rules tested on this section can reliably improve their English score significantly.
A small set of grammar rules accounts for a large portion of ACT English questions. The most frequently tested rules include: comma usage (especially around nonrestrictive clauses, introductory phrases, and lists), apostrophe rules for possessives vs. contractions, subject-verb agreement (especially with intervening phrases), pronoun-antecedent agreement, modifier placement (avoiding dangling and misplaced modifiers), and parallel structure. Mastering these rules through targeted practice produces reliable score gains without requiring you to memorize the entire grammar canon.
One of the most common mistakes on ACT English is answering based on a fragment of the sentence. Always read the complete sentence containing the underlined portion — and sometimes the sentences before and after — before selecting your answer. Many errors only become visible in full context. Punctuation errors in particular depend on the complete sentence structure, not just the underlined portion.
ACT English consistently rewards conciseness. When two answer choices are grammatically correct, the shorter, more direct option is usually correct. The test frequently includes choices like 'the fact that' or other wordy constructions that can be replaced with simpler phrasing. 'NO CHANGE' is also a valid answer and is correct approximately 20 to 25% of the time — do not avoid it simply because you are looking for an error.
The ACT Math section gives you 60 minutes for 60 questions — an average of 1 minute per question. Questions range from basic arithmetic to pre-calculus, and roughly 60% cover material from 9th and 10th grade math courses. The key to ACT Math success is efficient problem-solving, not advanced knowledge.
Approximately 60 to 65% of ACT Math questions cover algebra (linear equations, functions, inequalities) and coordinate geometry or plane geometry. If your goal is a score in the 28 to 32 range, focus the majority of your preparation on mastering these topics before spending time on pre-calculus and trigonometry, which appear in only 5 to 10% of questions. Getting the mid-difficulty algebra and geometry questions right reliably is more efficient than spending time on the hardest trig or logarithm questions that may appear at the end of the section.
You may use a calculator on all 60 ACT Math questions. Make sure you know how to use your calculator efficiently — graphing calculators are permitted and can be especially useful for solving systems of equations and verifying function values. However, over-relying on the calculator for basic arithmetic slows you down significantly. Practice solving basic equations and simplifying expressions without the calculator so that you only reach for it when the problem genuinely requires it.
If you are stuck on a question, skip it, mark it, and move on. The ACT Math section is linear (not adaptive), so there is no penalty for returning to earlier questions. Spending five minutes on one hard question costs you three or four easier questions later in the section. Solve the problems you can answer quickly first, then return to difficult ones with whatever time remains. Always guess on questions you cannot solve — there is no penalty for wrong answers.
The ACT Reading section is 35 minutes for 40 questions across four passages — approximately 8 to 9 minutes per passage including reading time and answering questions. This tight timing is the primary challenge for most students. Developing efficient reading habits is as important as comprehension skills.
Unlike sections where you must work sequentially, the ACT Reading section allows you to approach passages in any order. Scan all four passages and start with the genre you find most comfortable — many students prefer Literary Narrative (fiction) or Natural Science over Social Science or Humanities. Working your strongest passage first maximizes your accuracy at the start and leaves the hardest passage for last, when you can budget remaining time accordingly.
Some test prep programs recommend reading the questions first to guide your passage reading. This works well for specific detail questions (where you know what to look for) but can backfire for main idea and inference questions (which require holistic comprehension). Experiment during practice tests to see whether pre-reading questions helps or hurts your timing and accuracy. Many high-scorers simply read the passage carefully and then answer questions, using line references to return to the text for specific details.
ACT Reading questions frequently include line references (e.g., 'According to lines 23–27...'). Always go back to the referenced lines and read two to three sentences before and after the reference before selecting your answer. Wrong answers on referenced questions often use words from the passage but twist the meaning slightly — reading the full context prevents falling for these traps.
The ACT Science section is 35 minutes for 40 questions — one of the most time-pressured sections on any standardized test. Despite the name, it primarily tests data interpretation and scientific reasoning, not science content knowledge. Most questions can be answered by reading the passages and figures carefully, without advanced biology or chemistry knowledge.
For data representation passages (graphs, tables, diagrams), go directly to the figures before reading the explanatory text. The figures contain the data you need to answer questions, and reading them first helps you understand what the text is explaining. For Conflicting Viewpoints passages (where two scientists argue opposing positions), read the introductory text and both scientists' arguments carefully before answering — these passages require understanding positions, not data.
ACT Science passages fall into three categories: Data Representation (reading graphs and tables — approximately 3 passages), Research Summaries (analyzing experiment designs and results — approximately 3 passages), and Conflicting Viewpoints (reconciling opposing scientific perspectives — approximately 1 passage). Data Representation and Research Summary questions can usually be answered directly from the figures. Conflicting Viewpoints questions require reading both perspectives carefully and understanding how they differ. Identifying the passage type quickly helps you allocate reading time efficiently.
Many students lose time trying to understand the underlying science in each passage. This is rarely necessary. The questions almost always ask you to read a specific value from a graph, identify a trend in the data, predict what would happen if a variable changed based on shown trends, or determine which scientist's view is supported by specific evidence. These questions are answerable using the figures and passage alone, without outside scientific knowledge.
Your preparation only matters as much as your execution on test day. These strategies help you perform at your peak when it counts.
Pacing is the most common source of preventable score loss on the ACT. Each section has strict timing — 45 minutes for 75 English questions, 60 minutes for 60 Math, 35 minutes for 40 Reading, 35 minutes for 40 Science. Practice under exact timing conditions so that section pacing feels automatic on test day. If you find yourself spending too long on a passage or question during the actual exam, skip it and return — do not let one hard question cost you several easy ones.
Bubbling each answer individually after every question takes more time than you might expect — and risks misalignment errors where you fill in the wrong bubble. Consider answering a full passage or group of questions in your test booklet, then bubbling all those answers at once. This keeps your flow of reasoning intact and makes the bubbling process more efficient. Whatever method you use, leave at least one to two minutes at the end of each section to verify all answers are bubbled.
Do not attempt heavy studying the night before your ACT. Your preparation is complete — cramming at this stage is more likely to increase anxiety than improve your score. Lay out your materials (admission ticket, ID, calculator, pencils, permitted snack), eat a regular dinner, and go to bed at your normal time. The morning of the test, eat a filling breakfast with protein and complex carbohydrates. Bring a snack for the break between sections. Arrive early — ACT testing centers typically close doors right at the start time, and late-arriving students may not be admitted.