Calvin and Hobbes


Although on the surface this cartoon shows Calvin's innumeracy, there is at least one aspect which shows Calvin's numeracy skills. Children might like to discuss what it is.

[Calvin does realise that 12 + 7 and 3 + 4 should have different answers. One might speculate as to why he thinks this. Is it because the numbers in the problems are different? What if the second problem had been 5 + 2 instead of 12 + 7? That would have been a nice test. Or what if it had been 4 + 3?]

Students' discussion of the cartoon may expose some of their own misconceptions.


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