Name one way I could use algebra in real life or in any career besides engineering or teaching algebra, I'll wait.
Dude it's not about using it irl, it's the skill of problem solving
Obviously x = 5 is not gonna be used irl, it's just the skill of doing it
It is needed because most people dont go outside
And obesity is a problem
But the question is what is the most useless class at school? 25-30 years ago we went outside
We still go outside, we just don't go out as often due to smartphones.. But I still take my skateboard with and fly down some hills every now and then...
Just because u dont do anything, doesn't mean it's useless. Ur need to be properly fit. It's not even about u. Lots of people dont do anything physical so
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But often it's "preparation" for everything except where they end up going in life
Otherwise (with hundreds of different high schools, each for a different specialication) you would need to know where you are going in life at a really young age, 10ish or something, no child would know this.
For algebra, I see no use for it aside from engineering or teaching algebra. Some argue that it teaches logic, but such classes exist and go much more in depth on that than algebra.