(Each chapter concludes with a Checkup.) 1. Number and Place Value. Vocabulary for Math Directions. Place Value. Odd and Even Numbers. Skip Counting; Rounding. Estimation and Measurement. 2. Addition. Vocabulary for Addition. Problem Solving: The 5-Point Checklist. Finding the Needed Data. Plan What To Do: Draw a Picture. Write Your Own Problems. Finding the Perimeter. Making Reasonable Choices. 3. Subtraction. Vocabulary for Subtraction. Addition and Subtraction Properties. Problem Solving: Subtraction. Choose the Math Operation. Problem Solving: Addition or Subtraction? Write Your Own Problems. Problem Solving: Estimation. Graphs. 4. Multiplication. Vocabulary for Multiplication. Multiplication Properties. Understanding Multiplication. Problem Solving: Multiplication. Multiplying with Money. Write Your Own Problems. Estimating Products. Measurement: Area. Measurement: Volume. 5. Division. Vocabulary for Division. Division and Multiplication. Problem Solving: Division. Problem Solving: Mixed Practice. 2-Digit Divisors. Problem Solving: Making a Table. Write Your Own Problems. Estimation: Mental Math. Problem Solving with Estimation. Finding Averages. 6. Four Operations. Vocabulary Review. Reading Ordinal Numbers. Problem Solving: Choose the Operations. Using the 5-Point Checklist. Write Your Own Problems. Space Figures. Plane Figures. Faces, Vertices, and Edges. 7. Fractions. Vocabulary for Fractions. Equivalent Fractions. Lowest-Terms Fractions. Comparing Fractions. Practice in Comparing Fractions. Adding Fractions. Subtracting Fractions. Problem Solving with Fractions. Estimating with Fractions. Write Your Own Problems. Polygons. Learning Strategy Index. Academic Language Development Index.