I see 6-7 as 6+(-7).
Maybe there is something wrong with me.
I see 6-7 as 6+(-7).
Maybe there is something wrong with me.
Prenatally, Imo. Turn on some cosmos whilst pregnant and use osmosis to educate.
But seriously: Primary education is for literacy and numeracy. Ideas like science-lite where the topics and mechanisms are discussed, but with less of the math would be ideal. That leaves maximal time and brain-room for the foundations of math, which become quite important in science. If there was some way to get the basics of math to students faster, you could start doing some actual science that involves a heavier amount of math.
I started learning math when I was 3. I don't think you can really start too early on teaching people how to think about the world analytically.
Sorry was trying to talk on the phone, corrected it. I know the child won't use it because they simply wont have the time to draw a timeline for every math problem they have. That is completely ridiculous. The only thing you need to know for any addition or subtracting of whole numbers is actually quite simple, 0-9 are the only factors, you never have to subtract the 316 from the 427, you subtract as I showed before, the 6 from the 7, then then 1 from the 2, then the 3 from the 4, and you have your answer. You don't need to make it more complicated than it is.
Also the numbers are not abstract, if you decide to use a physical object as a representation of those numbers, then the objects are abstract but the numbers are still real.
Last edited by Solarth; 2014-05-01 at 10:29 PM.
In fact as far as I'm aware the UK is the only european nation that outright bans guns for civilians.This is why people ban guns. Gun supporters don't know what guns are.Shotguns I'll give you (provided you're allowed 12 and larger gauges... because I mean... come on...) but not .22s.
yes schools fail to properly teach math, it's nothing new.. stem needs to be taught from a very early age on imo, like elementary school
Not everyone grasps everything the same way. I am really good at logic things or figuring stuff out, but Math is like my Achilles heel.
As someone who is going back to college I hate how they cram stuff down your throat that you won't use a week later. I dunno all of the pointless classes are burning me out. I get no one would take the classes if they weren't required, but that speaks more to changing requirements for the modern world.
Here is a perspective from Neuroscience.
Human brain loves unconventional ways. Doctors suggest to circle moving backwards every once in a while to avoid Alzheimer. Different stimuli in human brain activates different neurons. Doing same thing over and over and over again only improves motor neurons (if it's physical). Doing things in conventional and cheap/efficient way is an engineering principle but may not be best option to employ in education.
I hate when people who are trying to teach me lie to me.
I was first taught that you can't do 369-411. Then I learned I can. Then they told me that I can't calculate the square root of -1. Then I learned I can. They also told me that you can't do 1/0. Then they told me is undefined. And at the end it turns out it's a complex infinity (which is still undefined tho).
Last edited by haxartus; 2014-05-01 at 10:42 PM.
You do it the same way my teachers taught our class, you teach them about real mathematical terms, like carrying, and borrowing. I'm not a teacher so I don't on a day to day basis teach kids by any means. If a child needs to learn it that way,(with the number line) then so be it, but there is no way that everyone should learn math that way. It would be the equivalent of me learning how to kill and process the cow just to cook a cheese burger...
Also, contrary to popular belief, being versatile does matter in the job market. I'm coming from a research science background and just accepted a job in implementation with a software company. I find it wildly implausible that they've have interest in me if my scientific education had been the research equivalent of a trade school. Learning things - it matters!
As Silas says above (hurray we agree on something as teachers,) all knowledge is relational. Sometimes it is easier for some and harder for others, some people prefer a formula, some people prefer asking "why?" There is nothing wrong with the building blocks being explicitly stated in different ways, because people learn in different ways. What seems blatantly obvious to some may have a point later, or it might not be so blatant to other people.
That is all there is to it. It's just scaffolding for more complicated tasks.
In fact as far as I'm aware the UK is the only european nation that outright bans guns for civilians.This is why people ban guns. Gun supporters don't know what guns are.Shotguns I'll give you (provided you're allowed 12 and larger gauges... because I mean... come on...) but not .22s.
1/0 is only complex infinity in contexts where it's meaningful to define it that way. They didn't lie to you when they told you it was undefined, because any definition you find is specific to some set of assumptions or some subject matter.
As for square root of -1, whether or not that's a lie is totally dependent on context, so unless the teacher is just bad (which is not unlikely in grade school), I'm inclined to think it wasn't really a lie. For instance, if you're calculating the trajectory of a cannonball with air resistance or something and you end up with square root of -1, then it's just wrong because you can't have imaginary trajectories. And if you have a function whose range is the real numbers, nothing which gives you square root -1 can be in the domain of the function.
On a more general note, you guys actually remember how to do these things? Jesus. I don't even remember how to do long division. That's why I have a calculator. "But what if the apocalypse happens and you run out of batteries?" Then I've got bigger problems than long division that need sorting out.
The funny thing is that I didn't need a calculator for any of my math exams in college.
Of course, physics is a different topic. Even the simplest calculation will take you like 10 minutes without a calculator. You will need a few minutes just to convert everything to SI.