Every guide, worksheet and calculator on IrfanEdu, grouped by subject. 380 pages in total.
ACT FlashCard
- ACT Practice Flashcard Test #1
- ACT Practice Flashcard Test #2
- ACT Practice Flashcard Test #3
- ACT Practice Flashcard Test #4
- ACT Practice Flashcard Test #5
ACT Prep
- 🎯 ACT Test Calculator 2026 – Free ACT Score Calculator
- About ACT : Syllabus and Test Overview 2026
- ACT Math Statistics Made Easy: Mean, Median, Mode & Range Guide
- Arithmetic and Geometric Sequences: Finding Sums | Math Guide
- Complete Geometry Formula Sheet: Every Formula You Need | IrfanEdu
- Complex Numbers: Complete Guide to Operations & Problem Solving
- Distance & Midpoint Formulas: Math Guide
- Dual Enrollment vs College Courses: Which Is Actually Right for You?
- Equations of Circles: Standard Form & Graphing Guide | IrfanEdu
- Exponential and Logarithmic Functions: Properties and Equations | ACT Math Guide
- Exponents and Polynomials: Simplifying and operations | ACT Math Guide
- Factoring Methods – Techniques & Examples | IrfanEdu
- Functions and Graphs: Domain, Range, and Transformations
- Laws of Exponents, Square Roots, and Cube Roots | ACT Math Guide
- Linear Equations and Inequalities | Elementary Algebra ACT Math Guide
- Master Basic Operations with Integers, Fractions & Decimals | ACT Math
- Master Factors & Multiples for ACT Math | Complete Guide
- Mastering Percentages: ACT Math Pre-Algebra Guide
- Number Properties Preparation: ACT Math Guide
- Parallel and Perpendicular Lines: Slopes & Equations Explained | IrfanEdu
- Quadratic and Absolute Value Inequalities | ACT Math Guide act math practice test pdf
- Quadratic Equations | ACT Intermediate Algebra Math
- Ratios and Proportions: Solving Direct and Inverse Proportion Problems | ACT Math Guide
- Simple Probability: Basic Concepts & Real-Life Applications | ACT Math Guide
- Simplify Algebraic Expressions | ACT Math Guide
- Simplifying Radical Expressions | ACT Math Guide
- Systems of Equations: Substitution & Elimination | ACT Math Guide
- Understanding and Solving Absolute Value Equations | ACT Math Guide
- Understanding Function Notation & Evaluating Functions | ACT Math Guide
- Word Problems into Algebraic Equations | ACT Math Guide
ACT Prep / Math & Science
ACT Prep – Math
About
Biology
- Anatomy and Physiology Study Guide: Master A&P Fast
- DNA Replication Modeling: Step-by-Step Guide for Students
- DNA Sequencing Explained: How It Works & Why It Matters
- Evolution Drift: What It Is, Why It Matters & Examples
- Modelling DNA Replication: Step-by-Step Guide for Students
- Science Olympiad Anatomy & Physiology: Complete Study Guide
Calculators
- Average Desk Height Calculator – Find Your Perfect Fit
- Blacktop Calculator: Asphalt Tonnage & Cost Estimator
- Concrete Price Calculator: Cost Per Yard & Slab
- Deck Stain Calculator: How Much Stain Do You Need?
- Desk Height Standard Calculator – Find Your Perfect Fit
- Flag Size Calculator: Find the Right Flag Dimensions
- Flooring Calculator: Compute Area, Cost & Waste
- Frame Image Size Calculator: Find Perfect Fit
- Pavement Calculator: Asphalt & Concrete Area Tool
- Photo Frame Size Calculator – Find the Right Frame Fast
- Picture Frame Measurement Calculator – Exact Sizing Guide
- Picture Frame Measurements Calculator – Frame Size Guide
- Pine Straw Calculator: How Much Do You Need?
- Pipe Weight Calculator – Steel, PVC & More
- Room Size for Pool Table Calculator – Find Your Fit
- Shingles Per Bundle Calculator – Roof Coverage Guide
- Sofa Length Calculator: Find the Perfect Fit
- TV Mounting Height Calculator – Find the Perfect Height
- TV Mounting Height Calculator: Find the Perfect Height
Chemistry
- Balancing Chemical Equations PhET: Complete Guide
- Balancing Chemical Equations Worksheet (Free PDF)
- Balancing Equations Worksheet Chemistry (Free PDF)
- Chemistry Notes: Complete Student Guide (2026)
- Flashcards Elements Periodic Table: Study Guide
- Integrated Physics and Chemistry: Complete Student Guide
- Math Curriculum Elementary: What Parents Get Wrong
- Organic Chemistry Practice Problems: Step-by-Step Guide
- Periodic Table of Elements Worksheet + Free PDF
- Periodic Table With Real Elements: Complete Guide
- Periodic Table Worksheet: Free Printable PDF + Answer Key
Coordinate Geometry
English
- Adjectives That Start With T: 150+ Words & Examples
- Annotated Bibliography Example: Complete Student Guide
- How to Analyze a Poem Step by Step | Complete Guide
- How to Cite a Play: MLA, APA & Chicago Guide
- How to Write a Book Report in High School (Step-by-Step)
- How to Write an Argumentative Essay: Step-by-Step
- Julius Caesar Summary Shakespeare: Full Play Guide
- Literary Devices List with Examples: 30 You Must Know
- Lord of the Flies Symbolism: Complete Guide
- MLA Format Citation Example: Complete Guide 2026
- Night by Elie Wiesel Summary: Complete Chapter Guide
- Primary vs Secondary Sources Examples: Complete Guide
- Subject Verb Agreement Rules: 15 Rules + Examples
- Thematic Statement Examples: From Simple to Complex
- Transition Words for Argumentative Essays: Full Guide
- Transition Words to Start a Body Paragraph (Full Guide)
- Wuthering Heights Chapter Summaries: Complete Guide
General
- 19th Century Painting: Complete Student Guide
- Classifying Triangles Worksheet – Free PDF with Answer Key
- Composite Figures: Area & Perimeter Explained with Examples
- Computer Science Games: Best Tools to Learn CS Through Play
- Congruent Triangles Worksheet: Free Printable PDF
- Details That Support the Main Idea: Complete Guide
- Different Types of Savings Accounts Explained (2026)
- Extreme Studentized Deviate: Complete ESD Test Guide
- Fluid Reasoning: What It Is & Why It Matters
- FTA ABS Test: Complete Guide for Students & Parents
- General Science Explained: Complete Student Guide 2026
- Golden Number Explained: What It Is & Why It Matters
- Hawaii Necklace: Complete Guide to Lei Culture & Types
- How Many Hawaii Islands Are There? The Real Answer
- Is a Upper Respiratory Infection Contagious? Full Guide
- Is a URI Contagious? How UTIs Spread Explained
- Main Idea Sheets: The Complete Student Guide
- Major Medical Insurance Explained: Complete Guide
- One Grand Central Place: Complete Place Value Guide
- Road to Emmaus Painting: Complete Art History Guide
- RSP Teacher: What They Do & Why Your Child Needs One
- Saint Sebastian Painting: History, Meaning & Artist Guide
- Science Classes in High School: Complete Guide (2026)
- Science for Eighth Graders: Complete Study Guide
- Similar Triangles Worksheet: Free PDF + Answer Key
- Spatial Visualization Reasoning: Skills, Tips & Exercises
- Special Right Triangles Worksheet: Free PDF + Lesson
- Special Triangles Worksheet: 30-60-90 & 45-45-90 PDF
- Subtracting a Negative Number: Complete Guide
- Teacher as a Resource: What It Means & Why It Matters
- Teenager Numbers Explained: What They Are & Why
- Tertiary Insurance Explained: What It Is & How It Works
- Types of Seeds: Complete Guide for Students (2026)
- Unit 4 APWH: Transoceanic Interconnections Guide
- Unit Circle Memorization Game: Master It Fast
- Vermeer’s The Astronomer: Complete Guide for Students
- What Is a Resource Teacher? Complete Guide for Parents
- Where Is Hawaii Situated? Location, Geography & Facts
- Where Is Starry Night by Van Gogh? Location & History
- Worksheet on Unit Circle: Lesson, Practice & PDF
Intermediate Algebra
Math
- 1 Step Equations Worksheet: Free Printable PDF + Lesson
- 1/4 + 2/3 in Fraction Form: Step-by-Step Answer
- 2 Step Inequalities Worksheet: Free Printable PDF
- 2 Times Table: Chart, Tips & Practice (2026)
- 3 Digit by 2 Digit Multiplication: Full Guide + Worksheet
- 3 Digit Multiplication Worksheets: Free Printable PDF
- ACT Practice Test 1
- Add Fractions with Unlike Denominators Worksheet
- Adding & Subtracting Fractions Unlike Denominators Worksheet
- Adding & Subtracting with Regrouping: Complete Guide
- Adding with Regrouping Worksheets: Free PDF + Lesson
- Addition & Subtraction with Regrouping Worksheets
- Addition With Regrouping Worksheets: Free PDF + Lesson
- Alabama Course of Study Math: Complete Grade Guide
- Algebraic Reasoning Explained: What It Is & How to Build It
- Alien Angles Explained: Definition, Types & Examples
- AP Physics Formula Sheet: Complete Guide to Mastering Physics Formulas 2026
- Area & Perimeter Worksheets: Free Printable PDF + Answer Key
- Area Model for Division: Step-by-Step Guide + Worksheet
- Area Model Multiplication Worksheets: Free PDF + Lesson
- Area of a Triangle Worksheet: Free Printable PDF
- Area of Composite Figures Worksheet (Free PDF)
- Area of Composite Shapes Worksheet (Free PDF + Answer Key)
- Area of Parallelogram Worksheet (Free PDF + Answer Key)
- Area of Trapezoid Worksheet: Free PDF + Answer Key
- Area of Triangle Activity Sheet: Free Printable PDF
- Area of Triangles Worksheet – Free PDF with Answer Key
- Area vs Volume: Complete Guide with Worksheet
- Balancing Chemical Equations Worksheet (Free PDF)
- Balancing Equations Worksheet – Free Printable PDF
- Circumference & Area of a Circle Worksheet (Free PDF)
- Classroom Math: Real-World Skills Every Student Needs
- Color by Number Multiplication: Complete Guide for Students
- Compare Fractions Worksheet: Free Printable PDF + Lesson
- Comparing Fractions Worksheet: Free Printable PDF + Lesson
- Compass Geometry: Complete Guide with Examples
- Complementary & Supplementary Angles Worksheet + PDF
- Consumer Math: The Complete Student Guide (2026)
- Decimal Number Line: Complete Visual Guide
- Decimal to Fraction Table: Complete Reference Chart
- Division Area Models: Complete Guide + Free Worksheet
- Equations for Algebra 2: Complete Guide with Examples
- Equations with Variables on Both Sides: Full Guide
- Equivalent Fractions of 1/2: Complete Guide + Worksheet
- Equivalent Fractions on a Number Line: Complete Guide
- Equivalent Fractions Worksheets: Free Printable PDF
- Extreme Math Explained: Concepts, Examples & Tips
- Fact Family Multiplication: Worksheet & Full Guide
- Factorization of Polynomials Worksheet + Free PDF
- Fill in the Missing Values to Make Equations True
- Find Population Mean or Sample Mean: Step-by-Step Guide
- Find the Area of the Figure Pictured Below – Full Guide
- Fraction Decimal Conversion Chart: Complete Guide
- Fraction Decomposition Calculator + Step-by-Step Guide
- Fraction Division & Multiplication Worksheets + PDF
- Fraction Models for Multiplication: Visual Guide
- Fraction Story Sums: Step-by-Step Guide with Examples
- Fraction to Decimal Chart: Complete Reference Guide
- Fractions Decimals and Percents Worksheets + PDF
- Fractions on a Number Line Worksheet (Free PDF)
- Fractions Word Problems: Lesson + Interactive Quiz
- Function Inverse Calculator – Find f⁻¹(x) Instantly
- Function Notation Worksheet: Free Printable PDF + Lesson
- Function Table: Complete the Function Table (Step-by-Step)
- Geometry Practice Test: 10 Questions + Full Answers
- Graphing Quadratic Equations Worksheet (Free PDF)
- Graphs of Systems of Equations Worksheet (Free PDF)
- Honors Geometry: Complete Guide for Students & Parents
- How to Find the Volume of a Triangular Pyramid
- How to Multiply and Divide Fractions: Full Guide + Worksheet
- How to Study for a Math Test: Step-by-Step Guide
- Improper Fractions to Mixed Numbers Worksheet + PDF
- Inequality Math Worksheets: Free Printable PDF + Answer Key
- Integrated Math 1: Complete Guide with Examples
- Integrated Math 2: Complete Guide for Students & Parents
- Integrated Math 3: Complete Student Guide with Examples
- Inverse of a Function Solver: Step-by-Step Guide
- Junior High Math: Complete Guide for Students & Parents
- Lagrange Error Bound Explained: Master Taylor Series Accuracy with Confidence
- Lung Volume Chart: Complete Guide for Students
- Main Idea & Details Graphic Organizer: Complete Guide
- Math Practical: Complete Guide for Students & Parents
- Math Trainer Multiplication: Complete Practice Guide
- Mean Median Mode Range Worksheet + Free PDF
- Mean Median Mode Worksheets: Free Printable PDF
- Mixed Number Multiplication Worksheet (Free PDF)
- Multi Digit Multiplication Worksheets: Free PDF + Answer Key
- Multi Step Equations Worksheet (Free PDF + Answer Key)
- Multi Step Inequalities: Complete Guide + Free Worksheet
- Multiplication & Division Fact Families Explained
- Multiplication & Division Word Problems: Full Guide
- Multiplication & Division Worksheets: Free Printable PDF
- Multiplication Worksheets 2 Digit by 1 Digit: Free PDF
- Multiply Polynomials Worksheet: Free Printable PDF + Lesson
- Multiplying Polynomials Worksheet (Free PDF + Answer Key)
- Number Line 20 to 20: Complete Visual Guide
- Number Line Addition: Complete Step-by-Step Guide
- Number Line for Negatives and Positives: Complete Guide
- Number Line with Integers: Complete Visual Guide
- Number Lines and Rounding: The Complete Visual Guide
- NYS Math Standards Explained: What Every Student Needs
- NYS State Math Standards: Complete Guide for Students
- Operations with Polynomials: Complete Guide + Worksheet
- Order of Operations with Fractions: Complete Guide
- Partial Fraction Generator Calculator + Step-by-Step Guide
- Place Value Mat: Complete Guide with Examples
- Place Value Worksheets for 4th Graders (Free PDF)
- Positive & Negative Integers on a Number Line Explained
- Pre Calculus Equations: 9 Things Nobody Tells You
- Prime & Composite Numbers Worksheet (Free PDF)
- Properties of Operations in Math: Complete Guide
- Quadratic Function Graph Worksheet + Free PDF
- Rays in Math: Definition, Types & Examples Explained
- Reducing Fractions Worksheet: Free Printable PDF + Lesson
- Rounding on a Number Line: Complete Student Guide
- Saxon Math Placement Test: Complete Parent & Student Guide
- Science Balancing Equations Worksheet (Free PDF)
- Scientific Notation Handout: Lesson, Worksheet & PDF
- Scientific Notation Worksheet: Free Printable PDF + Answer Key
- Solving 2 Step Equations Worksheet (Free PDF + Answer Key)
- Solving Linear Equations Worksheet (Free PDF + Answer Key)
- Solving Quadratic Equations by Factoring Worksheet
- Solving Rational Equations Worksheet (Free PDF + Answer Key)
- Solving Systems of Equations by Graphing Worksheet
- Solving Systems of Equations by Substitution Worksheet
- Strip Diagram Math: Complete Guide with Examples
- Subtracting 2 Digits with Regrouping: Worksheet & Guide
- System of Equations Worksheet (Free PDF + Answer Key)
- Systems of Equations Story Problems Worksheet
- Systems of Equations Substitution Worksheet (Free PDF)
- Systems of Equations Word Problems: Step-by-Step Guide
- Systems of Equations Worksheet (Free PDF + Answer Key)
- Systems of Linear Equations & Inequalities Explained
- Technical Math Explained: Concepts, Skills & Examples
- Two Step Equations Worksheet (Free PDF + Answer Key)
- Two-Step Inequalities Worksheet (Free PDF + Answer Key)
- Volume of a Cylinder Worksheet (Free PDF + Answer Key)
- Volume of Composite Figures Worksheet + Free PDF
- Volume of Composite Shapes Worksheet + Free PDF
- Volume of Rectangular Prism Worksheet + Free PDF
- What Does Evaluate the Expression Mean? Full Guide
- Which Fraction Is Equal To? Complete Guide with Examples
- Word Problems with Division of Fractions: Full Guide
NCLEX
- NCLEX Exam Guide: What the Test Measures and How to Study for It
- NCLEX Lab Values Flashcards: 25 Cards
- NCLEX Management of Care Practice Test: 26 Questions With Rationales
- NCLEX Management of Care: Complete Topic Guide
- NCLEX Pharmacology Flashcards: 25 Cards
- NCLEX Practice Questions Set 1: 100 Questions With Rationales
- NCLEX Practice Questions Set 10: 100 Questions With Rationales
- NCLEX Practice Questions Set 11: 100 Questions With Rationales
- NCLEX Practice Questions Set 12: 100 Questions With Rationales
- NCLEX Practice Questions Set 13: 100 Questions With Rationales
- NCLEX Practice Questions Set 2: 100 Questions With Rationales
- NCLEX Practice Questions Set 3: 100 Questions With Rationales
- NCLEX Practice Questions Set 4: 100 Questions With Rationales
- NCLEX Practice Questions Set 5: 100 Questions With Rationales
- NCLEX Practice Questions Set 6: 100 Questions With Rationales
- NCLEX Practice Questions Set 7: 100 Questions With Rationales
- NCLEX Practice Questions Set 8: 100 Questions With Rationales
- NCLEX Practice Questions Set 9: 100 Questions With Rationales
- NCLEX Safety and Infection Control Practice Test: 22 Questions With Rationales
- NCLEX Safety and Infection Control: Complete Topic Guide
Physics
- Electric Circuit Explained: Types, Parts & How It Works
- Electric Motor Design: How It Works & Key Principles
- Frequency Table Maker: Build & Read One Fast
- Physics 2 Equation Sheet: Complete AP Formula Guide | IrfanEdu
- Tension Calculator: Two Strings Different Angles
- Your Password Will Be USELESS in 10 Years — Here’s The Quantum Technology That Will Break Everything!
Physics Calculator
- Acceleration Calculator – Solve All Equations of Motion Instantly
- Circular Motion Calculator: Circular Velocity and Centripetal Acceleration
- Equation of Motion Calculator – 1st, 2nd & 3rd Equation Solver
- Friction, Gravitational, Centripetal Force Calculator
- Impulse, Torque Calculator | Irfanedu
- Newton’s 2nd Law, Weight Momentum Calculator
- Projectile Motion Calculator : Projectile range, Projectile Max height and Time of flight
- Velocity Calculator – Instantly Solve Speed, Distance & Time with Formulas
RRB ALP
Reading Practice Test ACT
- ACT Reading — Part 2 — Short Passages + Questions (Q21–Q40)
- ACT Reading Practice Test — PART 1 (Test 1 — 20 Questions)
- ACT Reading Practice Test — Part 3
- ACT Reading Practice Test — Part 4
- ACT Reading Practice Test — Part 5
SAT Prep
Science
- Biology Vocabulary List: 80+ Must-Know Terms
- Cell Organelles and Functions Chart: Complete Guide
- Cellular Respiration Steps Simple: Complete Guide
- DNA Replication Steps: Complete Guide for Students
- Ecosystem Food Web Examples: Complete Visual Guide
- Electron Configuration Practice: Rules, Examples & Quiz
- Genetics Practice Problems with Answers – Solved Guide
- How to Balance Chemical Equations: Step-by-Step Guide
- How to Convert Moles to Grams: Step-by-Step Guide
- Ionic vs Covalent Bonds: The Complete Student Guide
- Mitosis vs Meiosis Differences: The Complete Guide
- Periodic Table Trends Explained: Complete Guide
- Photosynthesis Explained for Students: Light & Dark Reactions
- Photosynthesis Explained Simply: The Complete Guide
- Punnett Square Practice Problems: Solve Any Problem
- Stoichiometry Practice Problems with Answers (2026)
- Types of Chemical Reactions Worksheet & Guide
Test Prep
- AP Calc BC Practice Test: Questions, Tips & Answers
- AP Chem Study Guide: Complete Exam Prep (2026)
- AP Chemistry Notes: Complete Study Guide 2026
- AP Macro Unit 1: Basic Economic Concepts Guide
- AP Micro Practice Test: 10 Questions + Full Answers
- APES Study Guide: Score 4 or 5 on the AP Exam
- APUSH Study Guide: Complete Exam Prep Strategy
- MCAT Physics Equations: Complete Guide & Cheat Sheet
- SAT Cheat Sheet: Every Formula & Strategy You Need
- SAT Grammar Rules: Complete Guide to Score Higher
- SAT Standard English Conventions: Complete Guide 2026
- SAT Timer: Master Every Section’s Time Limits
- Unit 3 AP World History: Complete Study Guide & Worksheet
Tools & Calculators
Uncategorized
act-prep
- 10 Reasons Why Students Should Not Have Homework
- ACT vs SAT: Which Is Easier? Honest 2026 Guide
- Area of Compound Figures Worksheet + Free PDF
- Area of Compound Shapes Worksheet (Free PDF + Answer Key)
- Candidates Test Explained: Complete Guide for Students
- Capstone Project: Complete Guide for Students
- Discriminant in Quadratic Equations: b²-4ac Explained
- Empty Number Line: Complete Guide for Students & Parents
- Good PSAT Score for 10th Grade: What You Need to Know
- How to Learn Coding: Step-by-Step Guide for Beginners
- How to Study for the PSAT: Proven Strategies That Work
- Lincoln Douglas Debate Format: Complete Guide 2026
- PSAT Score Calculator: Understand Your Score Fast
- PSAT vs SAT Difference: Which Test Do You Need?
- SAT Prep for Sophomores: Start Early & Score Higher
- SAT Vocabulary Words List: 200+ Must-Know Words
- Statistics Assignment Help: Expert Guide to Ace Any Task
- Triangle Inequality Theorem: Complete Guide with Examples
- What Is a Capstone Project? Complete Student Guide
- What Is the Area of the Figure Below? Full Guide + Worksheet
- When Do Sophomores Take the PSAT? Complete Guide
- Why Should Homework Be Banned? 7 Powerful Reasons
history
- Cold War Timeline for Students: Key Events 1945-1991
- French Revolution Summary Simple: Key Facts Explained
- Industrial Revolution Facts for Students: Key Data & Guide
- World War 1 Causes Summary: The Complete Guide
math-calculator
- Binomial Theorem Expansion Calculator + Guide
- Discriminant Calculator – Find & Solve with Steps
- Quadratic Formula Calculator – Solve ax²+bx+c=0 Fast