Math & Caffeine

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My name is Matthew Wynn Hefner.

This is a blog actively involved in improving and promoting the informative, engaging, and entertaining Tumblr Mathematics and Education communities.

There are also some things not are directly related to mathematics, but are posts I simply find interesting or are incredibly beautiful pieces of art. After all, it's my blog. c;

ceehu:

jamesmdavisson:

Yesterday at Pride in Chicago.

the cop smiling at him though haha

ceehu:

jamesmdavisson:

Yesterday at Pride in Chicago.

the cop smiling at him though haha

(via suckmyrichardgrayson)

— 2 weeks ago with 257236 notes
job interviews →

deathcabforchomsky:

After interviewing a guy who seemed more like a racist uncle than a teacher, I give you 4 things *NOT* to say in a job interview.

1. “I try to teach about money because lord knows urban kids don’t know about money”
2. “I struggled teaching them constructions because urban kids don’t have good…

I’m… just… what?  Really?  I’m blown away.

— 1 month ago with 12 notes
weareteachers:

As the school year draws to a close, it’s important to say it again. We believe teachers deserve better.
http://www.pinterest.com/pin/2251868536397273/

weareteachers:

As the school year draws to a close, it’s important to say it again. We believe teachers deserve better.

http://www.pinterest.com/pin/2251868536397273/

— 1 month ago with 367 notes
"plus C"
ancient calculus proverb (via cosmicbeachparty)
— 1 month ago with 1760 notes

thosewhoshowup:

So my school has this thing called the “Condom Fairy”. You just go to the Student Health website and state your preferences. You can choose male and/or female condoms and weather or not you want lube. Then a few days later an envelope appears in your mailbox free of charge! Also with that cool little note about consent. 

— 1 month ago with 148836 notes
curiosamathematica:

Three-dimensional Riemann sums.

curiosamathematica:

Three-dimensional Riemann sums.

— 1 month ago with 189 notes
staff:

Maybe you’ve just started to pursue a higher education. Maybe you’ve spent your adult life paying off debt from school. Either way, you’ve probably got questions about why college costs so much, what can be done about it, and if it’s even worth doing in the first place.
You should ask those questions to the President of the United States.
On Tuesday, June 10, our Founder/CEO, David, will head down to Washington to host a live conversation about education with President Obama. David will ask your questions. The President will answer them, out of his mouth, in front of the world.
(The White House will also be picking out a few question-askers to join us in person. If having the President’s ear isn’t enough, maybe standing on his carpet is.)
Submit your questions by midnight on Sunday, June 8. Then tune in to the White House Tumblr on Tuesday, June 10. See you in DC!

staff:

Maybe you’ve just started to pursue a higher education. Maybe you’ve spent your adult life paying off debt from school. Either way, you’ve probably got questions about why college costs so much, what can be done about it, and if it’s even worth doing in the first place.

You should ask those questions to the President of the United States.

On Tuesday, June 10, our Founder/CEO, David, will head down to Washington to host a live conversation about education with President Obama. David will ask your questions. The President will answer them, out of his mouth, in front of the world.

(The White House will also be picking out a few question-askers to join us in person. If having the President’s ear isn’t enough, maybe standing on his carpet is.)

Submit your questions by midnight on Sunday, June 8. Then tune in to the White House Tumblr on Tuesday, June 10. See you in DC!

— 1 month ago with 19529 notes

iflewbikes:

Teach a class about racism… and this is what happens.

— 1 month ago with 38428 notes

jtotheizzoe:

Multip-Line 

This is the coolest math trick I’ve seen in a while! Multiply large numbers by just drawing lines.

Most of us learned to multiply any two numbers based on sequentially multiplying from right to left, from ones to higher powers, while carrying over the extras from tens to hundreds to thousands and so on. 

But what if you could multiply numbers just using lines? That’s what Vedic multiplication does! Give it a try, you’ll have a cool math trick to show your friends. It even works in non-base-ten!

This technique is often called Japanese multiplication, because it is (allegedly) taught to Japanese students, but from what I can tell it originated in India?

(video by Chris Lusto)

— 2 months ago with 561 notes