Mathematics · Mathematics Pedagogy
Pradeep was shown a broken ruler (starting from 2 cm) and asked, 'Where is 5 cm on the ruler?'. He picked up the ruler and pointed directly at the mark of 5 cm. His answer:
- 1reflects that he has the misconception that 5 cm refers to a specific point and not to a continuous length.✓
- 2is incorrect as the ruler is broken and he must start with 2 and should point at 7 as the desired mark.
- 3is incorrect as he is showing a point only and not the distance between two points marked as 0 and 5.
- 4is correct as he rightly pointed out the mark of 5 cm on the ruler.
Correct answer
reflects that he has the misconception that 5 cm refers to a specific point and not to a continuous length.
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