To avoid difficulty in learning of hearing impaired students the teacher should ___________
(i) Reduce unnecessary noise in class
(ii) Speak clearly and correctly
(iii) Reduce the use of audio aids as much as possible
(iv) Reduce the distance between the student and teacher
1
(i) only
2
(i) and (ii) only
3
(i), (ii) and (iv) only
4
(i), (ii), (iii) and (iv)