| yellow | Unit 4 | Lesson 67 |
| blue | Unit 3 | Lesson 117 |
| green | Unit 4 | Lesson 172 |
| green | Unit 12 | Lesson 207 |
| green | Unit 12 | Lesson 208 |
| green | Unit 12 | Lesson 209 |
| green | Unit 12 | Lesson 210 |
| orange | Unit 2 | Lesson 217 |
| orange | Unit 7 | Lesson 240 |
| orange | Unit 12 | Lesson 259 |
| silver | Unit 6 | Lesson 285 |
| silver | Unit 12 | Lesson 309 |
| silver | Unit 12 | Lesson 311 |