Which of the following is NOT a desirable teaching-learning practice to be followed by science teachers at middle school level ?

Correct option is A

“Convince students that the science subject is not meant for all” is an erroneous notion that undermines a core principle of education: that learning is accessible to everyone.
By suggesting that science is not for everyone, a teacher might inadvertently discourage students who are struggling or who may not yet have discovered their potential. This can lead to reduced confidence and a lack of motivation to try harder, which in turn could result in poorer performance not just in science, but in other subjects as well.