Return to Unit List Grade 4 Unit 1: Place Value and Number Sense   Place Value and Number Sense Links Animal Facts   Crossword Puzzle Lesson 1: Benchmark Numbers and Estimation Lesson 2: Place Value Through Hundred Thousands Lesson 3: Explore How Big is a Million? Lesson 4: Place Value Through Millions Lesson 5: Compare and Order Numbers Lesson 6: Problem Solving: Skill Using the 4-Step Plan   Numbers and Money Classroom Aquarium   Crossword Puzzle   Identification Lesson 1: Count Money and Make Change Lesson 2: Algebra: Compare and Order Money Amounts Lesson 3: Round Numbers and Money Chapter 2 Writing for Math Lesson 4: Problem Solving: Strategy Make a Table Greatest Possible Numbers