Charles has 500 students a week to teach, some of whom have only just arrived in the UK.
With the honeymoon period over, the teachers must work out a way to keep the kids engaged.
With the end of the first term approaching, some are progressing more quickly than others.
Chloe's year 11 class get the results of their mock exams and the news is not good.
A clique of year 10 girls have taken against Claudenia and are becoming hard to manage.
The trainees face the momentous decision of whether to stay in teaching.