3 ms·
I agree that this is a trivial question. But the linked pdf explains why it is an interesting question: it was posed to 20k US 8th graders in 1978, and the resu
by jethkl 4y ago
I agree that this is a trivial question. But the linked pdf explains why it is an interesting question: it was posed to 20k US 8th graders in 1978, and the results were random. The same question was posed to 48 US students in 2014, and results were again random.
- tgflynn 4y agoIt seems like it's testing two very different things. If you choose the third or fourth answer it means you don't understand fractions at all. If you choose answer one it means that you either tried to do the exact calculation and made a mistake or else that you don't have much experience with approximate arithmetic, which really shouldn't be surprising since very little emphasis is placed on that in school.