NCERT Science textbooks for upper primary classes include large number of daily life related questions which have been left unanswered. This has been done, so that _____.
Important Questions on Teaching Aids
Read the following which appears in the Class VIII NCERT textbook.
Nylon appears like silk. It is strong and flexible. These endearing qualities of nylon created a public sensation, or nylon mania when it was introduced in 1939. Women's stockings made from this new fiber were in great demand. But, unfortunately, most of the nylon production had to be diverted to making parachutes during the Second World War (1939-1945). After the war, when the production of stockings resumed, supply did not match the demand. There was a huge black market for this product. Women had to wait for hours in queues to get a pair. Often there were 'nylon riots'. What is the significance of including the above in a Science textbook?
1. To develop a historical perspective in science and development of ideas.
2. To develop an appreciation of how new inventions create new demands.
3. To develop a holistic understanding of science.
4. Including such anecdotes makes Science.
Textbook light and easy. Select the correct answer using the codes given below _____.
