statistics and applied probability

national university of singapore

When is a rectangle not a rectangle?

When it’s a square!  At least, according to a colleague’s partner’s child’s primary teacher, who marked the boy wrong for displaying an exemplary grasp of Euclidean geometry by noting that the square satisfies all the requirements to be a rectangle (it is a planar figure with four sides and four right angles). I wonder which of these conditions the teacher thought a square violated?

1 Comment

  1. Its the primary school education system. I made similar comments to my cousin who was a primary school teacher and she said that she understands my standpoint but in primary school, they are supposed to teach the “basics” and not “confuse” young children i.e. we can “confuse” them when they are older by telling them that what they thought was right was in fact wrong and what was wrong was in fact correct….. 😐 ….. real confusing….

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