Our class size is large/small. As a result, I think the Challenges will take more time/less time than average.

Class size will make some activities easier or harder. For example, a larger class means that learners can get lots of experience of group dynamics in their collaboration work. But they may have less opportunity to give presentations or use a computer to do their research.

Global Perspectives is likely to take more time to deliver initially as you become familiar with it. The important thing is that the learners are given opportunities to practise their skills and get feedback on them.