Wow, that’s nice! I like it
It's called grouping. It's part of the curriculum here. Break the arithmetic into easily calculated groups.
I just hope that you are not starting grading your students with the phrase “You’re absolutely right!”
I'm not in the U.S. no. We still require teachers to be qualified here (Masters)! 😂
There’s nothing wrong with calculators
There is if you're talking about calculators on phones, etc. Almost all of them give wrong answers to order of operations questions because the programmer didn't bother checking their Maths first. It's so bad that the Windows calculator in Standard mode says 2+3x4=20. Stick to name brands like Sharp and Casio. They have money invested in the success of their products, so they take more care to make sure it's correct!
Yes, 47% of 47 is certainly much easier to determine
And your real life example of a 47% discount on a $47 item is... where exactly?
Yeah, now calculate 6% of 36
6x3x10 + 6x6, move decimal point 2 places to the left
Replies itt make me believe that everyone on Lemmy is a chatbot
I'm a Maths teacher :-)
people forget that percent literally means per 100 or /100
Yes
the of is standing in for multiplication
No. The M is for Multiplication. O is for Order, as in "to the order of", as in Exponents.
6/100 * 50 = 50/100 * 6
=6x5 /10 (2 zeroes cancel out)
I just think the symbol “%” algebraically means 0.01
Warm. It actually means "per 100", hence the slash to represent a vinculum and the 2 zeroes. Of course in decimal that converts to 0.01.
Yeah stuff like that really ain’t it
Yes it is
It works in a few use cases,
It works in every case where you have multiplying and dividing, including fractions and percentages
but is objectively wrong
No it isn't
detracts from understanding the topic properly
Enhances it actually
That’s why I teach percentages as the fractions they are.
Sounds like you're only teaching as much as you understand. Try understanding more. Students love the tricks that make Maths easier, including this one.
Probably debatable. I think he was more addressing when you need to pull out a specific exception this is a cleaner way to do it. Saves having to rethrow the exception.
Kind of like saying that ChatGPT is people adding an AI player to the deterministic program of a chat
Except ChatGPT was written from scratch, so not at all like that
Tic-tac-toe is a classical example problem for neural networks 101, kind of a “hello world”
Doesn't change that that isn't how it was implemented to begin with. In your search results there are even people on Reddit asking how to add an AI player to their existing game. Seems like you gave me search results without even looking at them.
It still is
A deterministic program, yes
Plenty of examples out there
You found plenty of examples of people adding an AI player to the game. The game itself is still a deterministic program.
Wrong maths, you say?
Yes. If I want to know what 1+2 equals, and I throw a dice, there's a chance I will get the correct answer. If I do, that doesn't mean it knows how to do Maths. Also, notice where it said "Here's the calculation", it didn't actually show you the calculation? e.g. long multiplication, or even grouping, or the way the Chinese do it. Even a broken clock is right twice a day. Even if AI manages to randomly get a correct answer here and there, it still doesn't know how to do Maths (which includes not knowing how to count to begin with)