Post Am9vbAILEACmny0VKC by electric_gumball@mastodon.social
 (DIR) More posts by electric_gumball@mastodon.social
 (DIR) Post #Am9tHuggpa9WzP5X96 by futurebird@sauropods.win
       2024-09-19T10:35:25Z
       
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       I have discovered the exact age limit for teaching counting in binary. (doing math with just 1, 0)6th graders who are about 11 and 12 years old can do it-- 5th graders (age 10 or so) mostly can't. Math is still too new to them and though they've been adding two digit numbers for three years it's not ingrained enough for variation. Anyway back to the drawing board.
       
 (DIR) Post #Am9tjKFrscoA6Vc7MG by nilesh@fosstodon.org
       2024-09-19T10:40:23Z
       
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       @futurebird James Tanton's Exploding Dots approach makes it a lot more accessible.Here's a video of my kid exploring this when she was 7yo: https://youtu.be/MAsGfYvycTc?feature=shared
       
 (DIR) Post #Am9tlakBXsFDp4sJ3A by justafrog@mstdn.social
       2024-09-19T10:40:34Z
       
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       @futurebird Maybe use octal as a pathway? More digits, you can weasel in a chess board to get them into the right kind of board games, and they can still write literal opcodes with octal.
       
 (DIR) Post #Am9v59HfRzDKP3QRBg by flancian@social.coop
       2024-09-19T10:55:31Z
       
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       @futurebird very interesting!Does it make any difference if you use your hands to help with the count? So e.g. 7 is the thumb, index and middle finger raised.
       
 (DIR) Post #Am9vbAILEACmny0VKC by electric_gumball@mastodon.social
       2024-09-19T11:01:15Z
       
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       @futurebird There's 10 types of people.... alright, I'll show myself out now.
       
 (DIR) Post #Am9wvrF5MKyTkYunYW by rbairwell@mastodon.org.uk
       2024-09-19T11:16:11Z
       
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       @futurebird How times have changed. When I was still single digits (back in the 80s), I had my head around binary and hex (at least up to 256) as I needed to know them to make graphics on 8 bit computers. All computer books (even aimed at kids) covered binary.
       
 (DIR) Post #Am9zITYXn1esrDvgtU by mansr@society.oftrolls.com
       2024-09-19T11:42:45Z
       
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       @futurebird I remember learning binary numbers when I was 7.
       
 (DIR) Post #Am9zKXZLqAMLsnI8vI by bensk@mastodon.social
       2024-09-19T11:43:08Z
       
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       @futurebird we do a little bit in 5th grade with materials adapted from here: https://www.csunplugged.org/en/topics/image-representation/colour-by-numbers/But yeah exponents are still a very novel concept. I love that our kids see variables in CS before they see them in math!
       
 (DIR) Post #AmA2EPkcINh5lAKblg by jhavok@mastodon.social
       2024-09-19T12:15:37Z
       
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       @futurebird We learned multi-base arithmetic in 4th or 5th grade, never to see it again until college. I believe it was that horror "New Math" which taught kids to understand instead of repeating by rote, and was rejected because parents couldn't help their kids with their homework.  1 +1 = 10 😡🤬🤯