@drradon: I agree with you 100% on teaching both and teaching basic arithmetic first and then leading on to proper math once that foundation is established.

@dannym3141,

I was first blindsided by it when my kids came home with multiplication homework and were adamant they couldn't answer it the way I was showing them because it would be marked wrong, it was the wrong way to do multiplication.

The link to the full Manitoba math curriculum is below. The worst sections are under 'Mental Math' with the idea being that you should be able to add/subtract/multiply/divide all numbers in your head with a dozen pages worth of tricks. The tricks being what newtboy was calling 'proofs'. Our curriculum calls them 'techniques' though and I've included an example from the Grade 3 curriculum verbatim after of how it is supposed to be 'taught'.

Overall Math curriculum:
http://www.edu.gov.mb.ca/k12/cur/math/index.html

Grade 3 example:
http://www.edu.gov.mb.ca/k12/cur/math/support_gr3/number.pdf

From page 56:
Describe a mental mathematics strategy that could be used to determine a given basic fact, such as
-doubles (e.g., for 6 + 8, think 7 + 7)
-doubles plus one (e.g., for 6 + 7, think 6 + 6 + 1)
-doubles take away one (e.g., for 6 + 7, think 7 + 7 – 1)
-doubles plus two (e.g., for 6 + 8, think 6 + 6 + 2)
-doubles take away two (e.g., for 6 + 8, think 8 + 8 – 2)
-making 10 (e.g., for 6 + 8, think 6 + 4 + 4 or 8 + 2 + 4)
-commutative property (e.g., for 3 + 9, think 9 + 3)
-addition to subtraction (e.g., for 13 – 7, think 7 + ? = 13)."

Now before you think me and observe there's nothing wrong with showing kids some extra tricks to help them, that is NOT how this is supposed to be used. If you read further, students are REQUIRED to "explore" multiple methods of calculating answers and must demonstrate they know and can use all these 'tricks'. So instead of providing assistance for difficult calculations as it should be, it's used to make ALL calculations difficult, and create extra work, AND makes kids just learning the concept completely overwhelmed with everything you MUST know to get a right answer to 2+2=4.

And here's the link to the Grade 11 review of the basic arithmetic:
http://www.edu.gov.mb.ca/k12/cur/math/ess_mm_gr11/full_doc.pdf

And for the Grade 11 students and teaching them to add/subtract/multiply and divide, the teacher's guide describes this like a subjective discovery process with quotes like this:
"Consequently, mental calculation activities should include periods for thought and discussion.
During these periods, the teacher should encourage students to
-suggest a variety of possible solutions to the same problem
-explain the different methods used to come to the correct answer and their
effectiveness
-explain the thought process that led to an incorrect answer"

An important note is we are not talking about solving complex word problems here or anything, but specifically for calculating a basic arithmetic operation with the different methods being those described from back in Grade 3 already outlined above.

Lotsa white tears in here.

I'm guessin maybe she was trying to say that we all have, like, biases, or something? Like, quick conclusions on incomplete and/or superficial information. Useful survival technique - awkward in modern society - decidedly not demonic. Quintessentially human and not unique to white folks either. But if you define "racist" so loosely it does rather make it impotent. So were all racist and we'll never not be? Why am I listening to you then?

Apple and oranges. Dubstep is a genre of music, whereas beatboxing is a performance technique.

I'm guessing the cards have a tell etched in to the sides, he does a subtle thumb riffle at about 4:47 while distracting everyone. The idea that the cards are well and truly shuffled drops everyones guard for that 5seconds after.

The "playing seconds" I'm sure is a large role in the final bit as well and at normal speed with his technique, it really is impossible to notice.

I like Keanu more the more i come to understand about him, but i always come away from videos like this wondering if there was enough mouthwash in the world to help this man get rid of the taste of Keanu's arse from his tongue.

Keanu's a very interesting and seemingly nice man. He's a good action actor who puts the hours in to put in a convincing performance. The embellishment about 'textbook' judo techniques and 'veteran' driving skills are marketing embellishments about the most basic of techniques you'd learn if you attended any entry level training course in either driving or judo.

If she was trying to escape, she wasn't trying hard. She looked like she was slowly riding circles to me.
When, exactly, do you hear them tell her to stay? I don't here them say anything of the sort before she's handcuffed, not that I think she was trying to leave.

Being detained for cooperation of investigation? You do not have to submit to handcuffing and detention without a suspected crime, and "cooperation of investigation" is not a crime I've ever heard of. Detention is not arrest, so she wasn't resisting arrest.

Because I warn you I'm going to shoot you if you don't do something, that makes it OK if I do? Hmmmm. They can legally use spray and tasers in self defense, but should not be allowed to use them as a coercion technique. She posed no threat seated in the car handcuffed, so there was no legitimate use of force, and certainly no legitimate use of weaponry.

Again, this was only detention, not arrest. I've never heard of anyone charged with resisting detention.

Sadly its quite difficult to swallow a digestive upside down else I'd use this dunking technique more frequently.

I think the attempt itself counts as a test!

This article from the Atlantic talks a little about why the Kenyans make such great runners - https://www.theatlantic.com/international/archive/2012/04/why-kenyans-make-such-great-runners-a-story-of-genes-and-cultures/256015/

There was certainly scope for the Wired vid to be much longer and more in-depth. They had an equally short and unsatisfying article about a journalist who trained for a 90 minute half marathon using the same training techniques the Kenyans use here - https://www.wired.com/2017/05/two-hour-marathon-nike-half-marathon/?mbid=synd_digg

Your video, Passive Aggressive Relationship Techniques, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Disturbingly, this show actually made people think torture is an effective interrogation technique.

Congratulations! Your video, Self Defense Techniques For United Passengers, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.

This achievement has earned you your "Golden One" Level 5 Badge!

Your video, Self Defense Techniques For United Passengers, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Not sure what competition this is, but that technique is certainly against the rules in Tour De France, as well as many other cycling competitions.

I was taught a similar technique with an added step (but rarely use it)

Once you have the garlic minced, sprinkle some salt on it then use the french knife on an angle and crush the salt into the garlic.

Apparently it helps to draw out the juices faster.

**EDIT**
I'm finding other sources that say that sterile "terminator seeds" are a patented technique, but that Monsanto has promised not to use it. Straight from the horse's mouth:
http://www.monsanto.com/newsviews/pages/terminator-seeds.aspx

So it appears that my info below is wrong. I will try to talk with my family and get the full story. That being said, I'll leave my original comment and the followup below unaltered.
*********


My firsthand knowledge of this stuff was from more than 10 years ago, and also when I was pretty young (early 20's). So I did some web searching to try to get updated since your question is a very interesting one:

http://web.mit.edu/demoscience/Monsanto/about.html

According to that, Monsanto is the company behind "Roundup Ready", and their corn (and other crops in the line) do use sterile "terminator seeds". It also mentions that farmers "must purchase the most recent strain of seed from Monsanto" each year.

I was never in the decision-making structure of my family farm, but I did remember that we couldn't just buy the Roundup Ready seed *once* and then hold a small amount back as seed for the next year and continue to get the benefits.

I'm not 100% sure exactly how the modification for sterility works -- I don't know if the plant will sprout if you plant the sterile seeds and just fail to produce any ears / fruit, or if it just won't germinate at all. I do remember that we had to be quite careful to fully clean out the corn grown from the GM seeds from our storage bins, and better yet to store our non-GM corn to be used for future seed in entirely different bins. That was done to make sure that we didn't end up planting any of the sterile stuff.

I'm sure that the seed dealers that sell the GM stuff really push farmers to buy and plant it every year, as hinted to in that link. But you certainly don't *have* to. On the other hand, if you go back to non-GM seed for a year or two or more, you can't use a strong herbicide like Roundup if you have an unexpected outbreak of weeds or other pest plants -- the Roundup would kill the non-GM crop along with everything else.

Basically, I don't specifically begrudge companies like Monsanto for their practices concerning these GM crops. The "terminator seeds" are controversial, but don't seem like a big deal to me. If you could buy GM seeds once and then just hold back some of your harvest for next season's seed, they'd only get your money once AND we'd probably lose the original strains. So I see that as kinda win-win, especially if you don't 100% buy into their sales department urging you to use GM seed every single year.

I don't want to sound like a shill for Monsanto -- some of their other practices are pretty shady, particularly political lobbying. But from the perspective of my family farm, the GM corn that we use was/is a real beneficial thing. Significantly less pesticide/herbicide use over time, and it allows for expanded low/no till farming. Before herbicides, tilling was one of the only ways to kill off pest plants. But, it also makes the fields lose some moisture and nutrients. Expanded farming and ubiquitous tilling was largely the cause of the "dust bowl" dirty 30's. Anyway, I'd say that a lot of good has come out of modernized techniques and technology like GM crops.