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 Addends Learn Practice Lesson 12: Missing Numbers in Subtraction Learn Practice Lesson 13: Adding Three-Digit Numbers, Activity Adding Money Learn Practice Lesson 14: Subtracting Two-Digit and Three-Digit Numbers, Missing Two-Digit Addends Learn Practice Lesson 15: Subtracting Two-Digit Numbers with Regrouping, Activity Subtracting Money Learn Practice Lesson 16: Expanded Form, More on Missing Numbers in Subtraction Learn Practice Lesson 17: Adding Columns of Numbers with Regrouping Learn Practice Lesson 18: Temperature, Activity Measuring Temperature Learn Practice Lesson 19: Elapsed Time Problems, Activity Finding Elapsed Time Learn Practice Lesson 20: Rounding Learn Practice Investigation 2: Units of Length and Perimeter, Activity Estimating the Perimeter Learn Practice Chapter 3: Lessons 21–30, Investigation 3 Lesson 21: Triangles, Rectangles, Squares, and Circles, Activity Drawing a Circle Learn Practice Lesson 22: Naming Fractions, Adding Dollars and Cents, Activity Counting Money Learn Practice Lesson 23: Lines, Segments, Rays, and Angles, Activity Real-World Segments and Angles Learn Practice Lesson 24: Inverse Operations Learn Practice Lesson 25: Subtraction Word Problems Learn Practice Lesson 26: Drawing Pictures of Fractions Learn Practice Lesson 27: Multiplication as Repeated Addition, More Elapsed Time Problems, Activity Finding Time Learn Practice Lesson 28: Multiplication Table Learn Practice Lesson 29: Multiplication Facts: 0s, 1s, 2s, 5s Learn Practice Lesson 30: Subtracting Three-Digit Numbers with Regrouping, Activity Subtracting Money Learn Practice Investigation 3: Multiplication Patterns, Area, Squares and Square Roots, Activity 1 Finding Perimeter and Area, Activity 2 Estimating Perimeter and Area Learn Practice Chapter 4: Lessons 31–40, Investigation 4 Chapter 5: Lessons 41–50, Investigation 5 Lesson 41: Subtracting Across Zero, Missing Factors Learn Practice Lesson 42: Rounding Numbers to Estimate Learn Practice Lesson 43: Adding and Subtracting Decimal Numbers, Part 1, Activity Adding and Subtracting Decimals Learn Practice Lesson 44: Multiplying Two-Digit Numbers, Part 1 Learn Practice Lesson 45: Parentheses and the Associative Property, Naming Lines and Segments Learn Practice Lesson 46: Relating Multiplication and Division, Part 1, Activity Using a Multiplication Table to Divide Learn Practice Lesson 47: Relating Multiplication and Division, Part 2 Learn Practice Lesson 48: Multiplying Two-Digit Numbers, Part 2 Learn Practice Lesson 49: Word Problems About Equal Groups, Part 1 Learn Practice Lesson 50: Adding and Subtracting Decimal Numbers, Part 2, Activity Adding and Subtracting Decimals Learn Practice Investigation 5: Percents, Activity Percent Learn Practice Chapter 6: Lessons 51–60, Investigation 6 Lesson 51: Adding Numbers with More Than Three Digits, Checking One-Digit Division Learn Practice Lesson 52: Subtracting Numbers with More Than Three Digits, Word Problems About Equal Groups, Part 2 Learn Practice Lesson 53: One-Digit Division with a Remainder, Activity Finding Equal Groups with Remainders Learn Practice Lesson 54: The Calendar, Rounding Numbers to the Nearest Thousand Learn Practice Lesson 55: Prime and Composite Numbers, Activity Using Arrays to Find Factors Learn Practice Lesson 56: Using Models and Pictures to Compare Fractions, Activity Comparing Fractions Learn Practice Lesson 57: Rate Word Problems Learn Practice Lesson 58: Multiplying Three-Digit Numbers Learn Practice Lesson 59: Estimating Arithmetic Answers Learn Practice Lesson 60: Rate Problems with a Given Total Learn Practice Investigation 6: Displaying Data Using Graphs, Activity Displaying Information on Graphs Learn Practice Chapter 7: Lessons 61–70, Investigation 7 Chapter 8: Lessons 71–80, Investigation 8 Pengi Sign in
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