how to provide the needed instruction to students

4:37

7:14

3:51

6:08

4:11

10:11

6:55

5:07

10:10

6:55

6:59

6:46

2:32

16:23

6:48

3:43

6:32

1:10

3:58

6:24

27:43

20:00

7:05

1:43

13:53

1:38

11:17

14:10

11:11

6:08

1:29

9:53

1:46

1:07

2:10

7:51

10:56

12:55

کوتاه

8:47