12 Powerpoint slides (2015) 12 Powerpoint slides (2015) 12.1. PPT Week 1 PPT Week 1 12.2. PPT Week 2 PPT Week 2 12.3. PPT Week 3 PPT Week 3 12.4. PPT Week 4 PPT Week 4 12.5. PPT Week 5 PPT Week 5 12.6. PPT Week 6 PPT Week 6 12.7. PPT Week 7 PPT Week 7 12.8. PPT Week 8 PPT Week 8 12.9. PPT Week 9 PPT Week 9 12.10. PPT Week 10 PPT Week 10