According to NBC Washington, this is one of the ridiculous ways Common Core teaches kids problem solving and critical thinking… with simple beyond reason math problems.
I found this image on Facebook and shared it and even asked my stepfather to take a look at it. An aerospace engineer (a career involving a heavy amount of calculus) could not figure out what was going on here. If you’re making math so hard that someone who studied his ass off in calculus classes can’t understand it, you’re making it too hard for kids. Burn Common Core to the fucking ground.
yes!!
I can’t even begin to understand why this new fangled way is necessary. Like…I’m so confused right now looking at this shit. Bish whet?
Fuck the American public education system. This shit is why out children don’t tank top 10 globally. This is why our children can’t get jobs.
Okay, for the record, if you actually look at it, it’s really not that hard to figure out what’s going on here. They start off with the smaller number (12) and just continue to add to it until eventually they get the larger number (32). They then add up all the small numbers they had added to it and get the difference (20). Yes, it’s a longer and less simplistic way of doing simple math, but what you have to remember is that everyone learns differently. The fact that they are showing both the “Old Fashioned” way and the “New” way allows children to learn their own way.
The reason that the public education is garbage is NOT because of trying to introduce new methods of learning, it’s because of forcing children to learn only a single way. If the teacher was railing for the children to only ever use this new method or to only ever to use the old method (which to an adult is obviously incredibly simple but not necessarily to the mind of a young child) THAT would be a problem. Pigeonholing children is what causes them to not be able to learn their own way and struggle, giving them a variety of options helps them grow and learn more naturally.
Also, this new method is much closer to how we (or at least I) solve subtraction problems mentally in the real world. Because it’s a little cumbersome to borrow ones from other digits with your head. Also, admit it, adding is easier than subtracting.
For example. Your groceries miraculously round out to $22. You’re paying in cash and will pay using a $50. What’s your change?
Make 22 become 30 by adding 8, then add 20 to make it 50. 20 plus 8 is your change.
Compare that to this. 50 minus 22. First digits, 0 minus 2 does not work so borrow a ten. 10 minus 2 is 8. Second digits, 4 minus 2 (because 1 was taken away) is 2. 2 and 8 make 28.
Also, the new method allows children to understand the relationship between adding and subtracting much more easily, which is essential when algebra comes around.
