Student and teacher

4 mins 11 secs

40 secs

32 mins 2 secs

12 mins 7 secs

18 mins 4 secs

3 mins 55 secs

53 secs

1 min 46 secs

9 mins 44 secs

1 min 41 secs

9 mins 7 secs

12 mins 40 secs

3 mins 7 secs

26 secs

3 mins 5 secs

1 min 52 secs

32 secs

37 mins 35 secs

14 mins 8 secs

16 mins 51 secs

1 min 16 secs

1 min 7 secs

5 mins 35 secs

9 mins 29 secs

2 mins 44 secs

4 mins 47 secs

3 mins 52 secs

23 mins 19 secs

1 min 21 secs

1 min 52 secs

3 mins 9 secs

6 mins 1 sec

11 mins 6 secs

22 mins 49 secs

2 mins 20 secs

25 mins 48 secs

3 mins 1 sec

1 min 24 secs

24 secs

11 mins 18 secs