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Topic	Trying to teach my little brother (on the spectrum) the concept of rounding
joe40001 06/20/21 2:28:44 AM #4:	teep_ posted... So my little brother is in quarantine since someone in his class came down with CoVID. He's been given work to do at home from his teacher and me and my mum have been helping him to it. He's in Year 3 btw Anyway, last night it was my turn to do some maths with him and learn about rounding. The context was prices: if I want to calculate how much 7.88 + 6.92 is I can calculate 8 + 7 first and then work out the difference. And he just didn't get it. Normally he's a whiz at maths, regularly gets 100% in his tests. But he just could grasp the concept of having to calculate a rough answer before the actual answer /blogFAQs, I guess I think it would help if you explain the rough answer obviously isn't the "answer" but is a closer estimate than a random guess. I haven't heard back on my spectrum tests it's hard to get diagnosed as an adult, but online tests suggest I'm on the spectrum, and his kind of thinking definitely makes sense to me. The confusing thing isn't that rounding is hard, the confusing thing is calling it "right". People who like precision and math don't like calling the wrong thing "right". So maybe reframe rounding as approximation. I hope they aren't saying he has to solve 7.88+6.92 as 8+7-0.12-0.08, because that certainly isn't any more "right" than just doing 7.88 + 6.92 directly, it just helps some people who aren't as precision minded think about it. --- "joe is attractive and quite the brilliant poster" - Seiichi Omori https://imgur.com/TheGsZ9 <cite>joe40001 posted [p:955227587] in Trying to ... [t:79523728]...</cite> <quote>teep_ posted... </cite> <quote>So my little brother is in quarantine since someone in his class came down with CoVID. He's been given work to do at home from his teacher and me and my mum have been helping him to it. He's in Year 3 btw Anyway, last night it was my turn to do some maths with him and learn about rounding. The context was prices: if I want to calculate how much 7.88 + 6.92 is I can calculate 8 + 7 first and then work out the difference. And he just didn't get it. Normally he's a whiz at maths, regularly gets 100% in his tests. But he just could grasp the concept of having to calculate a rough answer before the actual answer /blogFAQs, I guess</quote> I think it would help if you explain the rough answer obviously isn't the "answer" but is a closer estimate than a random guess. I haven't heard back on my spectrum tests it's hard to get diagnosed as an adult, but online tests suggest I'm on the spectrum, and his kind of thinking definitely makes sense to me. The confusing thing isn't that rounding is hard, the confusing thing is calling it "right". People who like precision and math don't like calling the wrong thing "right". So maybe reframe rounding as approximation. I hope they aren't saying he has to solve 7.88+6.92 as 8+7-0.12-0.08, because that certainly isn't any more "right" than just doing 7.88 + 6.92 directly, it just helps some people who aren't as precision minded think about it. --- "joe is attractive and quite the brilliant poster" - Seiichi Omori https://imgur.com/TheGsZ9</quote> ... Copied to Clipboard!
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