The following sample lessons are available as PDF downloads:

- Kindergarten: Unit K, Lesson 4: Which Row Has More? (PDF)
- Grade 1: Unit 1, Lesson 3: How Many More? (PDF)
- Grade 2: Unit 2, Lesson 3: Add A Few (PDF)
- Grade 3: Unit 3, Lesson 5: Finding the Difference (PDF)
- Grade 4: Unit 4, Lesson 7: Adding Fractions (PDF)
- Grade 5: Unit 5, Lesson 2: Decimals Are Fractions Too (PDF)
- Grade 6: Unit 6, Lesson 5: Changing Ratios to Percents (PDF)
- Grade 7: Unit 7, Lesson 8: Solve for
*x*in Proportions (PDF) - Grade 8: Unit 7, Lesson 10: Similar Figures (PDF)