General ACCAPRACTICAL EXPERIENCE REQUIREMENT (PER)..HELP?

Currently . i am doing for PER.I am stuck in PER 8 & 9 Challenge questions.How do i answer this challenge questions. PER 8 Describe an occasion when you have identified an opportunity to improve departmental performance. How did you contribute to developing the opportunity for improvement? Was this opportunity fully successful, why was this? If not, why not? PER9 Describe your role in managing a discrete assignment. How did you apply learning from your day-to-day role in this assignment? What did you learn from the assignment that will help you in your day-to-day role? It is tough questions as i cannot understand it and it is almost identical to each other.Help me to understand it.Please.