This series helps students develop mathematical skills, understand mathematical ideas, learn problem-solving strategies and communicate about math. More generally, it seeks to strengthen the ability of young people to reason systematically and to think with confidence and flexibility.
1. Deciding When to Use Subtraction
2. Deciding How Close to Measure
3. Problem-Solving: Acting It Out
4. Using Estimation
5. Understanding Place Value
6. Deciding When to Use Multiplication
7. Using Fractions
8. Problem-Solving: Drawing a Picture
9. Looking at Objects From Different Positions
10. Using Mental Computation
11. Deciding When to Use Division
12. Problem-Solving: Making a Table
13. Using Multiplication and Addition
14. Relating Fractions and Decimals
15. Predicting Your Change
16. Using Bar Graphs
17. Understanding Remainders
18. Problem-Solving: Recognizing Necessary Information
19. Finding Equivalent Fractions
20. Finding Area by Covering
21. Making Sense of a Big Number
22. Estimating When Dividing
23. Comparing Decimals
24. Using Probability
25. Changing Scale on a Graph
26. Problem-Solving: Keep on Trying
27. Problem-Solving: Many Ways to Go
28. Problem-Solving: Using a Guide
