Something about math education
Everyone in this sub should’ve seen the question “6÷2(1+2)” or any of the variations by now. This question is ambiguous, all because of the use of the Obelus (or known as the division sign). There’s a reason why the Obelus isn’t used in higher level math, because it causes miscommunication, same with the multiplication sign!
What if, starting in elementary when we first learn about multiplication and division, we use the fraction bar and brackets to teach it? Wouldn’t that eliminate the future confusions for our children? As far as I know, some children (not all) have a hard time transitioning from the Obelus and multiplication sign to fraction bar and brackets. They would ask questions like “Why do we need a new way of expressing it if we already have a way?” Because they don’t understand the miscommunication it causes, teaching it in just 1 of the ways would be easier for them to learn, and using the way that causes the least miscommunications would make them not as confused as they are now.
If we just eliminate the multiplication sign and the Obelus completely, we wouldn’t have the problem with Implied Multiplication (not everyone understands it) or any of these ambiguous cases.
I think the world should consider doing this.
(Sorry if some of my words are confusing as English isn’t my first language and I’m still trying my best to make it sound natural and easy to understand)