2023-08-21 04:46 UTC
5/7
Note that "Brackets" means remove/solve/expand and simplify brackets. As we have seen this is taught in Year 7 (when we teach about coefficients of bracketed Terms). It does NOT mean "inside brackets", which is what's taught in Primary School (when bracketed Terms never have a coefficient), yet many people claim it does. I found it curious that so many people have a rock-solid memory of what they were taught in Primary School, but not High School, so I ran this poll https://dotnet.social/@SmartmanApps/110868343908844233
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@SmartmanApps@dotnet.social 2023-08-21 04:47
6/7 which was the closest similar scenario I could think of. We are told (disingenuously unfortunately, but that topic's for another week) that negative numbers don't have square roots... then in University "Hey! That wasn't right! We're now going to teach you about Complex numbers...". This poll is a bit different situation then, as not everybody went to University, but it does illustrate the lasting division over the issue (1/3rd of people still believe no square roots for negative numbers).