| 1234567 | author: Keith Johnstonecontent: People think of good and bad teachers as engaged in the same activity, as  if education was a substance, and that bad teachers supply a little of the substance,  and good teachers supply a lot. This makes it difficult to understand that education  can be a destructive process, and that bad teachers are wrecking talent, and that  good and bad teachers are engaged in opposite activities.id: 59efd5c7-11f9-47d8-aa3a-aa99fceef0f8
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