Curated Tumblr

3947 readers

308 users here now

For preserving the least toxic and most culturally relevant Tumblr heritage posts.

Image descriptions and plain text captions of written content are expected of all screenshots. Here are some image text extractors (I looked these up quick and will gladly take FOSS recommendations):

-web

-iOS

-android

Please begin copied raw text posts (lacking a screenshot that makes it apparent it is from Tumblr) with:

# This has been reposted here to Lemmy as part of the "Curated Tumblr Project."

I made the icon using multiple creative commons svg resources, the banner is this.

founded 1 year ago

MODERATORS

[email protected]

619

Hungry 9 (lemmy.likes.cat)

submitted 1 month ago by [email protected] to c/[email protected]

135 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 15 points 1 month ago* (last edited 1 month ago)

If anything, these are exactly the techniques that "New Math" was supposed to teach. Your brain doesn't work math the same way as a computer. People who are good at math tend to break the whole thing down into simple pieces like this. New Math was developed by studying what they did and then teaching that to everyone.

I tend to add 9 to things by bumping the tens digit up by one (7 becomes 17) and then subtracting 1 (17 becomes 16).

Most of the arguments against New Math tended to prove the point; our mathematical education was in dire need of fixing.