Photo of the Day: Jellyfish VeinsPhoto by Kenneth Renk (Long Beach, CA, USA); Long Beach, CA, USA

this is fucked up. this fucked me up. the teachers fucked up by not showing us this fuck up. fuck.

dear god

i’m 28 and never knew this…wut

Geometry, bitches.

No, these responses are shit. Don’t give me that “teachers fucked up by not showing us this” shit. PLEASE do me a favor - think back to your math class. Assuming you weren’t in BC Calc, theres a good chance that 30 to 60 percent of your class didn’t give a flying fuck about math. Now guess what - you’re a teacher and you have to get shit through peoples brains. What do you teach? Not only what the school board wants you to teach, but the METHODOLOGY they want you to teach. You know what else is cool? Vertically and crosswise.

Take any two numbers you want to multiply. How about

64 x 58

Now, write them on top of each other:

6 4

5 8

Now multiply the right column, to get 4x8= 32. we’re going to keep the last digit [2] but carry the 3

6 4

5 8

——————

[3] 2

Now multiply the crosses and add them, so (6x8) + (5x4) = 48 + 20 = 68. Now add to our carried digit from before [3] to get 71. following previous methodology, keep the 1 and carry the 7.

6 4

5 8

——————

[7] 1 2

Now multiply the left column. 6x5=30, so add the carried 7 for 37 and following our methodology we get

6 4

5 8

——————

3 7 1 2

WHICH IS CORRECT. AND ALWAYS WORKS. FOR ANY NUMBER OF DIGITS [you just pick up more steps]. So basically, every time you ever learned bitchy long multiplication methods? This asshole was chillin.

**So why not teach these methods?**

Well, to teach these you have to explain these. For a teacher to teach the easy method, *they need to know that you know WHY these things happen.* Like how If you pick ANY three digit number in which the first and last digits differ by at least 2 [like 461], reversed the number [so 164], then subtracted the smaller from the larger [461-164=297] then added the resulting number to its reverse [297+792=1089] you will ALWAYS GET 1089. NO MATTER WHAT NUMBER YOU PICK.

**When you don’t understand how math works, you call it magic, but it is SO MUCH MORE THAN THAT. There are fantastic things to be understood, and the foundation of mathematical education CANNOT rest on people using methods that they don’t need to understand the “how” to use. **

PS: there is a reason why you’ll always get 1089. Figure it out yourself.

The explanation for this gap is simple. In Britain, guns are rare. Only specialist firearms officers carry them; and criminals rarely have access to them. The last time a British police officer was killed by a firearm on duty was in 2012, in a brutal case in Manchester. The annual number of murders by shooting is typically less than 50. Police shootings are enormously controversial. The shooting of Mark Duggan, a known gangster, which in 2011 started riots across London, led to a fiercely debated inquest. Last month, a police officer was charged with murder over a shooting in 2005. The reputation of the Metropolitan Police’s armed officers is still barely recovering from the fatal shooting of Jean Charles de Menezes, an innocent Brazilian, in the wake of the 7/7 terrorist bombings in London.

In America, by contrast, it is hardly surprising that cops resort to their weapons more frequently. In 2013, 30 cops were shot and killed—just a fraction of the 9,000 or so murders using guns that happen each year. Add to that a hyper-militarised police culture and a deep history of racial strife and you have the reason why so many civilians are shot by police officers. Unless America can either reduce its colossal gun ownership rates or fix its deep social problems, shootings of civilians by police—justified or not—seem sure to continue.

back in my day the reblog button was on the top. we had to scroll

through the snow, uphill both ways.15 miles