Student and teacher in

8 mins 4 secs

28 mins 18 secs

45 secs

48 secs

7 mins 49 secs

10 mins 24 secs

29 mins 53 secs

16 mins 8 secs

1 min 53 secs

2 mins 17 secs

2 mins 37 secs

2 hours 7 mins 54 secs

2 hours 2 mins 59 secs

17 mins 10 secs

9 mins 12 secs

1 hour 59 mins 59 secs

17 mins 22 secs

1 hour 59 mins 36 secs

5 mins 16 secs

16 mins 50 secs

45 mins 46 secs

1 hour 58 mins 14 secs

1 hour 56 mins 30 secs

1 hour 10 mins 11 secs

17 mins 24 secs

26 mins 18 secs

10 mins 20 secs

16 mins 41 secs

5 mins 10 secs

12 mins 4 secs

1 hour 37 mins 55 secs

1 hour 22 mins 8 secs

1 hour 1 min 46 secs

1 hour 36 mins 17 secs

12 mins 48 secs

2 hours 17 mins 33 secs

1 hour 51 mins 34 secs

33 mins 6 secs

1 hour 58 mins 7 secs

18 mins 20 secs