Curated Tumblr

4051 readers

193 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 2 years ago

MODERATORS

[email protected]

623

Hungry 9 (lemmy.likes.cat)

submitted 2 months 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] 1 points 2 months ago (1 children)

So, are you just talking about number lines in general?

I learned how to use those in grade school too. 20+ years ago. But the way you phrased it made me think there was more to it. Calling it nonsense is.. shocking.

[–] [email protected] 1 points 2 months ago* (last edited 2 months ago)

I guess we used it for an exercise or something a couple times, but never for more than indicating how numbers work. They've taken that idea and kind of run with it, instead of leaving it behind once the basics of addition have been mastered. I learned multiplication as just repeated addition, and there's no reason IMO to get a number line involved because addition should already be mastered.

This is a 2nd grade class, and I expect them to have long since mastered addition. At that point, a number line feels like a crutch more than a useful tool. Sure, use them in kindergarten and first grade to grasp how counting works (and counting by 2s and 10s), but that should honestly be as far as it goes. But they still use it for fractions and larger sums and products.