The speaker wants the teachers to create an awareness in students about nature when they teach of nature.
Example :
(a) It is not just teaching the concept of ‘rising waves’ but also the reasoning what causes the waves to fall.
(b) Teaching not only teach the use of fertilizers and pesticides, but even the damage they cause by killing small creatures and felling big trees.
(c) We teach the protection and promotion of the interests of consumers but at the same time we must also teach the imbalance it causes in the natural state of things which causes death and destruction on the earth.
(d) We must not just teach about birds like crows and sparrows but also teach what makes them to go extinct and how it could be prevented by saving them.
