ACT | 📘 Study Guides

🧩 40 Practice Tests & Quizzes 📘 159 Study Guides

---

📄 ACT Prep: Usage/Mechanics (Punctuation, Grammar, Sentence Structure)

📄 ACT Prep: Trigonometry (SOHCAHTOA, Radians, Graphs, Laws of Sines/Cosines)

📄 ACT Prep: Social Science / Natural Science – Main Idea, Details, Inference

📄 ACT Prep: Rhetorical Skills (Strategy, Organization, Style, Transitions)

📄 ACT Prep: Research Summaries (Experimental Design, Variables, Hypothesis, Results)

📄 ACT Prep: Pre‑Algebra and Algebra (Fractions, Exponents, Linear Equations, Inequalities)

📄 ACT Prep: Plane Geometry (Triangles, Circles, Polygons, Angles, Proofs)

📄 ACT Prep: Literary Narrative / Prose Fiction – Character, Theme, Tone

📄 ACT Prep: Intermediate Algebra (Quadratics, Systems, Functions, Matrices)

📄 ACT Prep: Humanities – Author’s Voice, Argument, Comparison

📄 ACT Prep: Data Representation (Graphs, Tables, Scatterplots – Read Axes, Trends, Units)

📄 ACT Prep: Coordinate Geometry (Lines, Circles, Distance Formula, Midpoint)

📄 ACT Prep: Conflicting Viewpoints (Compare Scientist Arguments, Assumptions, Strengths)

📄 ACT Prep: Conciseness and Redundancy

📄 ACT Prep: ACT Science Traps: Calculation Without Reading Context, Ignoring Units, Over‑Generalizing

📄 ACT Prep: ACT Reading Traps: Extreme Language, Partial Matches, Outside Knowledge

📄 ACT Prep: ACT Math Traps: Assumption of Right Angles, Misreading Graphs, Missing Unit Conversions

📄 ACT Prep: ACT English Traps: Comma Splices, Misplaced Modifiers, Wordiness

📄 ACT Writing Essay Structure Prompt Format Three Perspectives on a Complex Issue

📄 ACT Writing Essay Structure Organisation Introduction Body Conclusion Logical Progression

📄 ACT Writing Essay Structure Evidence and Reasoning Concrete Examples Logical Reasoning

📄 ACT Writing Essay Structure Engaging with Other Perspectives Acknowledge Compare Critique

📄 ACT Writing Essay Structure Developing Your Own Perspective Thesis and Argument

📄 ACT Writing Essay Scoring Language Use Domain Varied Sentence Structure Precise Word Choice

📄 ACT Writing Essay Scoring Ideas and Analysis Domain Engaging with Complexity

📄 ACT Science Science Strategy Using Process of Elimination Data Rules Out Wrong Answers

📄 ACT Science Science Strategy Time Management 35 Minutes 6-7 Passages Strategy

📄 ACT Science Science Strategy No Outside Knowledge All Answers in the Passage

📄 ACT Science Science Strategy Conflicting Viewpoints Last Passage Strategy

📄 ACT Science Research Summaries Predicting Results Extrapolating from Experimental Trends

📄 ACT Science Research Summaries Identifying Errors and Limitations What Weakens a Conclusion

📄 ACT Science Research Summaries Hypothesis Testing Drawing Conclusions from Experimental Data

📄 ACT Science Research Summaries Experimental Design Independent Dependent Control Variables

📄 ACT Science Research Summaries Designing a New Experiment What Should Be AddedChanged

📄 ACT Science Research Summaries Comparing Experiments What Changed Between Studies 1 and 2

📄 ACT Science Data Representation Units and Measurement Converting Scientific Notation

📄 ACT Science Data Representation Scatter Plots Correlation Line of Best Fit Extrapolation

📄 ACT Science Data Representation Reading Tables Identifying Patterns and Relationships

📄 ACT Science Data Representation Reading Graphs Line Graphs Trends Axes Units

📄 ACT Science Data Representation Reading Graphs Bar Graphs and Histograms

📄 ACT Science Data Representation Multiple Figures Connecting Data Across Two or More Graphs

📄 ACT Science Conflicting Viewpoints Understanding Two Scientists Positions What Each Believes

📄 ACT Science Conflicting Viewpoints Scientific Theory vs Opinion Distinguishing in Context

📄 ACT Science Conflicting Viewpoints Point of Agreement vs Disagreement Between Scientists

📄 ACT Science Conflicting Viewpoints Evaluating Evidence Which Finding SupportsWeakens Each View

📄 ACT Science ACT vs SAT ACT Science Section No Equivalent on SAT

📄 ACT Reading Social Science Main Idea Argumentative Social Science Passages

📄 ACT Reading Social Science Detail Questions Locating Specific Information Quickly

📄 ACT Reading Social Science Comparative Relationships Two Viewpoints in One Passage

📄 ACT Reading Reading Strategies Inference Evidence-Based Conclusions

📄 ACT Reading Reading Strategies Eliminating Wrong Answers Too Extreme Out of Scope Opposite

📄 ACT Reading Reading Strategies ACT Reading Speed Passage Strategy Read First vs Questions First

📄 ACT Reading Natural Science Scientific Argument Claim Evidence Data in Science Passages

📄 ACT Reading Natural Science Cause and Effect Scientific Relationships in Text

📄 ACT Reading Literary Narrative Narrative Technique Point of View Narrator Reliability

📄 ACT Reading Literary Narrative Main Idea and Theme Fiction and Personal Narrative

📄 ACT Reading Literary Narrative Figurative Language Metaphor Simile Tone Imagery

📄 ACT Reading Literary Narrative Character Analysis Motivation Emotion Relationships

📄 ACT Reading Humanities Vocabulary in Context Precise Meaning in Passage

📄 ACT Reading Humanities Authors Purpose and Perspective

📄 ACT Reading ACT vs SAT ACT Reading Speed-Intensive 52 Seconds Per Question

📄 ACT Math Trigonometry Unit Circle Radians Key Angle Values Signs by Quadrant

📄 ACT Math Trigonometry Trigonometric Identities Pythagorean sin²θ cos²θ 1

📄 ACT Math Trigonometry Sine and Cosine Rules Non-Right Triangles

📄 ACT Math Trigonometry SOH CAH TOA Right Triangle Ratios Finding Sides and Angles

📄 ACT Math Trigonometry Inverse Trig Functions arcsin arccos arctan

📄 ACT Math Trigonometry Graphs of Trig Functions Amplitude Period Phase Shift

📄 ACT Math Pre-Algebra Sets Union Intersection Venn Diagrams

📄 ACT Math Pre-Algebra Ratios and Proportions Part-to-Part vs Part-to-Whole

📄 ACT Math Pre-Algebra Probability Basic Probability Independent and Dependent Events

📄 ACT Math Pre-Algebra Percentages Percent Change Percent of Reverse Percent

📄 ACT Math Pre-Algebra Integers and Number Properties Factors Multiples Primes

📄 ACT Math Pre-Algebra Fractions Decimals Percents Conversions and Operations

📄 ACT Math Pre-Algebra Averages Mean Weighted Average Average Speed

📄 ACT Math Pre-Algebra Absolute Value Solving Equations and Inequalities

📄 ACT Math Plane Geometry Volume and Surface Area Prisms Cylinders Pyramids Cones Spheres

📄 ACT Math Plane Geometry Triangles Area Perimeter Special Triangles 30-60-90 and 45-45-90

📄 ACT Math Plane Geometry Similar Triangles AA SAS SSS Ratios of Sides

📄 ACT Math Plane Geometry Pythagorean Theorem Applications 2D and 3D

📄 ACT Math Plane Geometry Polygons Quadrilaterals Properties of Parallelogram Rectangle Rhombus

📄 ACT Math Plane Geometry Coordinate Geometry and Geometry Combined PerimeterArea from Coordinates

📄 ACT Math Plane Geometry Circles Arc Length Sector Area Central and Inscribed Angles

📄 ACT Math Plane Geometry Area and Perimeter Composite Figures Shaded Regions

📄 ACT Math Plane Geometry Angles Parallel Lines Transversals Triangle Angle Sum

📄 ACT Math Intermediate Algebra Sequences Arithmetic and Geometric nth Term and Sum

📄 ACT Math Intermediate Algebra Rational Expressions Simplifying Multiplying Adding

📄 ACT Math Intermediate Algebra Radical Expressions Simplifying Operations Rationalising

📄 ACT Math Intermediate Algebra Quadratic Functions Vertex Form Intercepts Transformations

📄 ACT Math Intermediate Algebra Quadratic Equations Factoring Formula Completing the Square

📄 ACT Math Intermediate Algebra Matrices Basic Operations Addition Multiplication Determinant

📄 ACT Math Intermediate Algebra Logarithms Definition Properties Solving Equations

📄 ACT Math Intermediate Algebra Functions Notation Domain Range Composition Inverse

📄 ACT Math Intermediate Algebra Exponent Rules Product Quotient Power Negative Fractional

📄 ACT Math Intermediate Algebra Complex Numbers Operations with i

📄 ACT Math Elementary Algebra Systems of Equations Substitution and Elimination

📄 ACT Math Elementary Algebra Substitution and Evaluating Expressions

📄 ACT Math Elementary Algebra Polynomials FOIL Factoring GCF Trinomials Difference of Squares

📄 ACT Math Elementary Algebra Linear Equations Solving and Setting Up from Word Problems

📄 ACT Math Elementary Algebra Inequalities Solving and Interpreting

📄 ACT Math Coordinate Geometry Transformations Translations Reflections Rotations of Graphs

📄 ACT Math Coordinate Geometry Systems of Equations Graphical Interpretation

📄 ACT Math Coordinate Geometry Quadratic Graphs Parabola Vertex Axis Intercepts

📄 ACT Math Coordinate Geometry Lines Slope Distance Midpoint Parallel and Perpendicular

📄 ACT Math Coordinate Geometry Linear Equations Forms Slope-Intercept Point-Slope Standard

📄 ACT Math Coordinate Geometry Circles in the Coordinate Plane Equation Center Radius

📄 ACT Math ACT vs SAT ACT Math No Formula Sheet Provided Must Memorise

📄 ACT Math ACT vs SAT ACT Math More Geometry and Trig Than SAT

📄 ACT Math ACT vs SAT ACT Math 60 Questions in 60 Minutes 1 Min Per Question

📄 ACT English Sentence Structure Subordinate Clauses Placement and Punctuation

📄 ACT English Sentence Structure Sentence Combining Joining Two Sentences Most Effectively

📄 ACT English Sentence Structure Parallel Structure Lists Comparisons Correlative Conjunctions

📄 ACT English Sentence Structure Misplaced and Dangling Modifiers

📄 ACT English Sentence Structure Fragments and Run-ons Identifying and Fixing

📄 ACT English Rhetorical Skills Writing Strategy Most Relevant Detail for Specific Purpose

📄 ACT English Rhetorical Skills Writing Strategy AddingDeleting Information Purpose

📄 ACT English Rhetorical Skills Style Tone and Audience Formal vs Informal

📄 ACT English Rhetorical Skills Style Concision Eliminating Wordiness and Redundancy

📄 ACT English Rhetorical Skills Style Avoiding Ambiguity Clear Reference and Expression

📄 ACT English Rhetorical Skills Organisation Logical Order of SentencesParagraphs

📄 ACT English Rhetorical Skills Organisation Best Transition Between Paragraphs

📄 ACT English Rhetorical Skills Big Picture Writers Goal Does the Passage Accomplish X

📄 ACT English Punctuation Semicolons and Colons Usage Rules

📄 ACT English Punctuation NO CHANGE vs Omit When to Delete Punctuation Entirely

📄 ACT English Punctuation Dashes Em Dash Usage Parenthetical Interruption

📄 ACT English Punctuation Commas Joining Independent Clauses with FANBOYS

📄 ACT English Punctuation Commas Introductory Elements Lists Nonessential Clauses

📄 ACT English Punctuation Apostrophes Possessive vs Plural vs Contraction

📄 ACT English Grammar Usage Verb Tense Consistency Sequence Perfect Tenses

📄 ACT English Grammar Usage Subject-Verb Agreement Inverted Sentences Collective Nouns

📄 ACT English Grammar Usage Pronoun Case Subject vs Object vs Possessive

📄 ACT English Grammar Usage Pronoun-Antecedent Agreement Ambiguous Reference Number

📄 ACT English Grammar Usage Comparatives and Superlatives MoreMost -er-est Irregular

📄 ACT English Grammar Usage Adjective vs Adverb Modifying Nouns vs VerbsAdjectives

📄 ACT English ACT vs SAT ACT English Rhetorical Skills Questions Writing Strategy

📄 How to Solve: ACT English – Usage & Mechanics (Grammar, Punctuation – Commas, Apostrophes, Semicolons)

📄 How to Solve: ACT English – Sentence Structure (Run-ons, Fragments, Parallelism, Modifiers)

📄 How to Solve: ACT English – Rhetorical Skills (Transitions, Organization, Author’s Purpose, Wordiness)

📄 How to Solve: ACT Reading – Social Science & Natural Science Passages (Main Idea, Detail, Inference)

📄 How to Solve: ACT Reading – Prose Fiction (Character, Plot, Tone)

📄 How to Solve: ACT Reading – Humanities Passages (Author’s Voice, Comparative Analysis)

📄 How to Solve: ACT Math – Trigonometry (SOH CAH TOA, Unit Circle, Law of Sines/Cosines)

📄 How to Solve: ACT Math – Ratios, Proportions, and Rate Problems

📄 How to Solve: ACT Math – Quadratic Equations and Functions

📄 How to Solve: ACT Math – Probability and Statistics (Mean, Median, Mode, Expected Value)

📄 How to Solve: ACT Math – Matrices and Vector Operations

📄 How to Solve: ACT Math – Linear Equations and Inequalities

📄 How to Solve: ACT Math – Geometry (Triangles, Circles, Polygons, 3D Solids)

📄 How to Solve: ACT Math – Exponents, Radicals, and Algebraic Expressions

📄 How to Solve ACT Math: Coordinate Geometry (Slope, Distance, Midpoint, Equation of a Circle)

📄 How to Solve: ACT Science – Research Summaries (Experimental Design, Variables, Control)

📄 How to Solve: ACT Science – Finding the Questions Directly from Graphs and Tables Without Reading the Passage

📄 How to Solve: ACT Science – Data Representation (Graphs, Tables, Scatterplots)

📄 How to Solve ACT Science – Conflicting Viewpoints (Comparing Hypotheses, Scientist Arguments)

📄 Common Mistakes on the ACT (American College Testing) Exam

📄 Common Traps on the ACT

📄 ACT (Enhanced, 2025+) Exam Survival Guide

📄 ACT Writing Test Samples

📄 List of Common Root Words

📄 Common Prefixes and Suffixes