Saxon Math, Intermediate 4 — Lessons, Skills & Practice | Pengi

Saxon Math Intermediate 4, published by Saxon Publishers, is a comprehensive fourth-grade mathematics textbook that builds skills through 120 incremental lessons organized across 12 chapters, each paired with a hands-on Investigation activity. The program covers core topics including whole number operations, place value, fractions, decimals, measurement, geometry, data analysis, and problem-solving strategies, with concepts revisited and reinforced throughout the year using Saxon's signature spiral learning approach. It is designed to develop mathematical fluency and critical thinking in Grade 4 students through consistent practice and cumulative review.

Saxon Math, Intermediate 4 covers 8 chapters and 89 lessons on Pengi.

Saxon Math, Intermediate 4 textbook table of contents

Chapter 1: Lessons 1–10, Investigation 1

Chapter 2: Lessons 11–20, Investigation 2

  • Lesson 11: Addition Word Problems with Missing AddendsLearnPractice
  • Lesson 12: Missing Numbers in SubtractionLearnPractice
  • Lesson 13: Adding Three-Digit Numbers, Activity Adding MoneyLearnPractice
  • Lesson 14: Subtracting Two-Digit and Three-Digit Numbers, Missing Two-Digit AddendsLearnPractice
  • Lesson 15: Subtracting Two-Digit Numbers with Regrouping, Activity Subtracting MoneyLearnPractice
  • Lesson 16: Expanded Form, More on Missing Numbers in SubtractionLearnPractice
  • Lesson 17: Adding Columns of Numbers with RegroupingLearnPractice
  • Lesson 18: Temperature, Activity Measuring TemperatureLearnPractice
  • Lesson 19: Elapsed Time Problems, Activity Finding Elapsed TimeLearnPractice
  • Lesson 20: RoundingLearnPractice
  • Investigation 2: Units of Length and Perimeter, Activity Estimating the PerimeterLearnPractice

Chapter 3: Lessons 21–30, Investigation 3

  • Lesson 21: Triangles, Rectangles, Squares, and Circles, Activity Drawing a CircleLearnPractice
  • Lesson 22: Naming Fractions, Adding Dollars and Cents, Activity Counting MoneyLearnPractice
  • Lesson 23: Lines, Segments, Rays, and Angles, Activity Real-World Segments and AnglesLearnPractice
  • Lesson 24: Inverse OperationsLearnPractice
  • Lesson 25: Subtraction Word ProblemsLearnPractice
  • Lesson 26: Drawing Pictures of FractionsLearnPractice
  • Lesson 27: Multiplication as Repeated Addition, More Elapsed Time Problems, Activity Finding TimeLearnPractice
  • Lesson 28: Multiplication TableLearnPractice
  • Lesson 29: Multiplication Facts: 0s, 1s, 2s, 5sLearnPractice
  • Lesson 30: Subtracting Three-Digit Numbers with Regrouping, Activity Subtracting MoneyLearnPractice
  • Investigation 3: Multiplication Patterns, Area, Squares and Square Roots, Activity 1 Finding Perimeter and Area, Activity 2 Estimating Perimeter and AreaLearnPractice

Chapter 4: Lessons 31–40, Investigation 4

Chapter 5: Lessons 41–50, Investigation 5

  • Lesson 41: Subtracting Across Zero, Missing FactorsLearnPractice
  • Lesson 42: Rounding Numbers to EstimateLearnPractice
  • Lesson 43: Adding and Subtracting Decimal Numbers, Part 1, Activity Adding and Subtracting DecimalsLearnPractice
  • Lesson 44: Multiplying Two-Digit Numbers, Part 1LearnPractice
  • Lesson 45: Parentheses and the Associative Property, Naming Lines and SegmentsLearnPractice
  • Lesson 46: Relating Multiplication and Division, Part 1, Activity Using a Multiplication Table to DivideLearnPractice
  • Lesson 47: Relating Multiplication and Division, Part 2LearnPractice
  • Lesson 48: Multiplying Two-Digit Numbers, Part 2LearnPractice
  • Lesson 49: Word Problems About Equal Groups, Part 1LearnPractice
  • Lesson 50: Adding and Subtracting Decimal Numbers, Part 2, Activity Adding and Subtracting DecimalsLearnPractice
  • Investigation 5: Percents, Activity PercentLearnPractice

Chapter 6: Lessons 51–60, Investigation 6

  • Lesson 51: Adding Numbers with More Than Three Digits, Checking One-Digit DivisionLearnPractice
  • Lesson 52: Subtracting Numbers with More Than Three Digits, Word Problems About Equal Groups, Part 2LearnPractice
  • Lesson 53: One-Digit Division with a Remainder, Activity Finding Equal Groups with RemaindersLearnPractice
  • Lesson 54: The Calendar, Rounding Numbers to the Nearest ThousandLearnPractice
  • Lesson 55: Prime and Composite Numbers, Activity Using Arrays to Find FactorsLearnPractice
  • Lesson 56: Using Models and Pictures to Compare Fractions, Activity Comparing FractionsLearnPractice
  • Lesson 57: Rate Word ProblemsLearnPractice
  • Lesson 58: Multiplying Three-Digit NumbersLearnPractice
  • Lesson 59: Estimating Arithmetic AnswersLearnPractice
  • Lesson 60: Rate Problems with a Given TotalLearnPractice
  • Investigation 6: Displaying Data Using Graphs, Activity Displaying Information on GraphsLearnPractice

Chapter 7: Lessons 61–70, Investigation 7

Chapter 8: Lessons 71–80, Investigation 8

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