Build your ACT study plan around a clear baseline, guided practice and useful feedback. Work through the subjects below, review your mistakes and return to a timed test when you are ready.
Original challenge practice with advanced and stretch problems, worked explanations, and no shared questions between forms. Difficulty labels are editorial, not psychometrically calibrated. Fixed forms; raw accuracy only, not an official score prediction. ACT timing: English 50 questions / 35 minutes, Math 45 / 50, Reading 36 / 40, and optional Science 40 / 40. A 15-minute break follows Math. Writing is not included. Final editorial review edition 3; corrected wording and explanations. Previous editions remain available only to their saved attempts.
Start with the default section countdowns for this practice format. Custom pacing lets you shorten or extend section times when working on speed, and your report identifies adjusted timing. Check the exam administrator’s current guidance for official test-day requirements.
Official ACT resources
ACT subjects and lesson topics
Lessons combine a worked example, guided exploration and checked exercises. Required steps must be completed before a lesson counts toward your progress. These are available study topics, not a guarantee of official exam coverage or a score increase.
Math
Circle area
Use the radius to measure the space inside a circle.
Circle circumference
Measure the distance around a circle, using its radius or diameter.
Square area
Multiply a square’s side length by itself to find its area.
Rectangle area
Cover a rectangle with rows and columns of unit squares.
Triangle area
A triangle covers half the area of a rectangle with the same base and height.
Explore 61 more lessons in this subject in the student workspace.
English
Plurals and possessive nouns
Decide whether a noun means more than one, ownership, or both.
Contractions and possessive pronouns
Expand contractions before deciding whether an apostrophe belongs.
Complete sentences and fragments
Find a main clause that expresses a complete thought.
Comma splices and run-ons
Check both sides of a sentence boundary before choosing punctuation.
Coordinating conjunctions
Use FANBOYS to connect equal grammatical units and express a relationship.
Explore 55 more lessons in this subject in the student workspace.
Reading
ACT Craft and Structure
Trace the narrator’s perspective, imagery, word choice, and structural choices across the whole passage.
ACT Key Ideas and Details
Distinguish the main claim from supporting details and follow chronology, comparisons, and cause-effect limits.
ACT Integration of Knowledge and Ideas
State each text’s claim, evidence, and limitations separately before comparing them.
Science
ACT Interpretation of Data
Read table headings, axes, units, and controlled conditions before identifying a trend or comparing values.
ACT Scientific Investigation
Identify the question, manipulated variable, measured outcome, controls, and repetition in an investigation.
ACT Evaluation of Models, Inferences, and Experimental Results
Write each model’s prediction before comparing it with observations or competing explanations.
Turn your results into your next study session
Complete a practice test. Set aside the time required by the selected form and submit your answers so the result can be saved.
Review the missed questions. Read the correct choices and explanations. Written responses use the provided review guidance where applicable.
Practice the underlying skill. Choose a lesson from the subjects above. Use available targeted practice and your mistake notebook according to your access.
Plan the next attempt. Your calendar records completed activities, and PDF reports help you review progress over time.
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