| Chapter 2 Section 2 | Jason |
| Chapter 2 Section 3 | Adeel |
| Chapter 2 Section 3 Exercises | Alex |
| Chapter 2 Section 4 | Charlotte |
| Chapter 2 Section 4 Exercises | Miles |
| Chapter 2 Section 5 | Onye |
| Chapter 3 Section 1 | Brian |
| Chapter 3 Section 2 | Tim |
| Chapter 3 Section 3 | Onye |
| Chapter 3 Section 4 | Charlotte |
| Chapter 3 Section 5 | Miles |
| Chapter 4 Section 1 | Jason |
| Chapter 4 Section 2 | Alex Tim Brian |
| Chapter 4 Section 3 | Onye |
| Chapter 4 Section 4 | Charlotte |
| Chapter 4 Section 5 | Miles |
| Chapter 5 Section 1 | Jason |
| Chapter 5 Section 2 | Alex |
| Chapter 5 Section 3 | Tim |
| Chapter 5 Section 4 | Dan |
| Chapter 5 Section 5 | Dan |
| Chapter 6 Section 1 | Brian |
| Chapter 6 Section 2 | Onye |
| Chapter 6 Section 3 | Charlotte |
| Chapter 6 Section 4 | Miles |
| Chapter 7 Section 1 | Jason |
| Chapter 7 Section 2 | Alex |
| Chapter 7 Section 3 | Tim |
| Chapter 7 Section 4 | Brian |
| Chapter 7 Section 5 | Onye |
| Chapter 8 Section 1 | Charlotte |
| Chapter 8 Section 2 | Miles |
| Chapter 8 Section 3 | Jason |
| Chapter 8 Section 4 | Alex |
| Chapter 8 Section 5 | Tim |