Resource 3: Suggested answers to Case Study 3

Table R3.1 Identifying the most and least important ideas in an information text – filled-in example. (Source: National Council of Educational Research and Training, 2007)
Respiration in organisms Most important ideas Less important ideas
Have you ever wondered why you get muscle cramps after heavy exercise? The cramps occur when muscle cells respire anaerobically. The partial breakdown of glucose produces lactic acid. The accumulation of lactic acid causes muscle cramps. We get relief from cramps after a hot water bath or a massage. Can you guess why it is so? Hot water bath or massage improves circulation of blood. As a result, the supply of oxygen to the muscle cells increases. The increase in the supply of oxygen results in the complete breakdown of lactic acid into carbon dioxide and water.
Key science ideas

Resource 2: Using groupwork

Resource 4: More or less important information