What about basic mental arithmetic?

Within the margin of error.

I’m gifted in other ways.

I struggle with arithmetic. Generally i do think this is a case of just not using it, thanks to calculators

When Common Core math came out and people were up in arms against it, I wanted to know what the big deal was. I researched it, read that it makes mental math easier, and deciding to learn/practice it myself.

I understand the parents who struggled to help kids with their homework, since they weren’t taught the same way and if you’re just thrown into it, it’s hard to figure out. Though how it turned into this big hullabaloo was an extreme reaction. Mental math has become very easy for me since learning it, which makes me think many of us missed out on a method that could’ve helped us a lot.

So, no, I don’t struggle with math. What I struggle with is the confidence to believe I’ve come to the right answer. I usually do math calculations more than once because I doubt myself. My first college mathematics professor gave me a reality check about it once, as he was getting frustrated that I wouldn’t put my hand up even though he knew I had figured out the answers. I can still see him standing there, going, “Come on, Whats_your_reasoning, I know you’ve got it. What’s the answer? Just say it!”

10 + 10 = … hold on, where did I put that thing? 🤪

math was the only fun subject to me

Yeah I remember looking into it back when people were freaking out, and I realized that it was basically how I taught myself to do mental math like 30 years ago.

Did they ultimately get rid of Common Core? Or did people finally just shut up about it?

100, ez clap

Common Core everything in general is pretty solid. You know how people like to complain about critical thinking not being taught in schools? Well CC English classes at the end of HS are all goals like finding textual evidence to support an opinion, or distinguishing between stated text and actual meaning (vis a vis satire, irony, etc).

The real problem is underfunded schools not having the resources to address student needs, not the teaching aims themselves. Imagine if every classroom maxed out at 15 students, just for one simple thing we could do to start fixing shit.

Here are CC standards for 11-12 grade reading and writing
https://www.thecorestandards.org/ELA-Literacy/W/11-12/
https://www.thecorestandards.org/ELA-Literacy/RL/11-12/

I have studied so much goddamn math in my life…

…and yet the hardest parts of being a trainer has been a) counting reps and b) subtracting 45 from a number and dividing it by 2.

Many states adopted their own standards instead of the Common Core, likely because of the political backlash. Most that I’ve seen are 90% CC with some state-specific requirements for things like history.

I had issues with making mistakes over long calculations. So math where your calculations were like a page long meant I would very likely have the wrong answer. So basic math no real problem and begining algebra to. then advanced algebra bad. geometry and trig good. precalc and whatever was put with it bad. beginning calc good. advanced calc and differential equations. ugh. im not really sure if im autistic or adhd or anything but im definately not normal. that is any place I worked im fairly sure im the wierd guy but like quirky weird. i mean not everywhere. im in tech and I have worked in places where I was closer to norm.

WRONG! 1010 = uh… 10 actually?

I may need to rethink my life.

you’re breaking my brain!

affiliate@lemmy.world I have a masters degree in physics, and I just straight up don’t do mental math, and never have. Math is for pencils and notepads. And I love pencils and notepads!

This is correct in JavaScript math

I was the opposite. Math was, if not easy, then simple. Every math problem has a specific set of steps you take to solve it, and a single objective answer. Unlike literature, there’s no room for differing opinions or interpretation. It meshed very nicely with my black-and-white worldview.

Concatenation, then binary -> decimal. Computers are weird. People are weirder. 🤪

That last one is easy. Given any x,

(x - 45)/2 = lost gains. If you still fit through doors, put that plate back on

The derivation is a bitch left as an exercise for the reader