| yellow | Unit 9 | Lesson 89 |
| green | Unit 3 | Lesson 167 |
| green | Unit 3 | Lesson 168 |
| green | Unit 3 | Lesson 170 |
| silver | Unit 2 | Lesson 265 |
| silver | Unit 2 | Lesson 267 |
| bronze | Unit 1 | Lesson 320 |
| bronze | Unit 1 | Lesson 321 |
| bronze | Unit 2 | Lesson 325 |
| bronze | Unit 4 | Lesson 335 |
| bronze | Unit 8 | Lesson 351 |
| gold | Unit 2 | Lesson 374 |