background preloader

The Map of Mathematics

The Map of Mathematics

http://www.youtube.com/watch?v=OmJ-4B-mS-Y

Related:  Math & Physics - Matematica e Fisica - LogicamatematicaHow it worksPedagogens matteMath

Fractions by The Math Learning Center How To Use Fractions Working with Fraction Bars and Circles More Toolbar Items Overview Fractions lets students use a bar or circle to represent, compare, and perform operations with fractions with denominators from 1 to 100. Choose the fraction model and number of equal parts. Climate Undermined by Lobbying For all the evidence that the benefits of reducing greenhouse gases outweigh the costs of regulation, disturbingly few domestic climate change policies have been enacted around the world so far. So say UC Santa Barbara professor and economist Kyle Meng, and co-author Ashwin Rode, a former UCSB Ph.D. student now at the University of Chicago, in a paper published in the journal Nature Climate Change. “There is a striking disconnect between what is needed to avoid dangerous climate change and what has actually been done to date,” said Meng, a professor in the Bren School of Environmental Science & Management and in the Department of Economics. One common explanation for that disconnect, he added, is that jurisdictions are reluctant to adopt climate policy when they can simply benefit from the reductions implemented by other jurisdictions. However, say Meng and Rode, the political process that leads to climate change regulation can be a barrier to its own legislation.

Major / minor axis of an ellipse - Math Open Reference Major / Minor axis of an ellipse Major axis: The longest diameter of an ellipse. Minor axis: The shortest diameter of an ellipse. Try this Drag any orange dot. People in higher social class have an exaggerated belief that they are better than others WASHINGTON -- People who see themselves as being in a higher social class may tend to have an exaggerated belief that they are more adept than their equally capable lower-class counterparts, and that overconfidence can often be misinterpreted by others as greater competence in important situations, such as job interviews, according to research published by the American Psychological Association. "Advantages beget advantages. Those who are born in upper-class echelons are likely to remain in the upper class, and high-earning entrepreneurs disproportionately originate from highly educated, well-to-do families," said Peter Belmi, PhD, of the University of Virginia and lead author of the study.

Pythagorean Triangles and Triples The calculators on this page require JavaScript but you appear to have switched JavaScript off (it is disabled). Please go to the Preferences for this browser and enable it if you want to use the calculators, then Reload this page. Right-angled triangles with whole number sides have fascinated mathematicians and number enthusiasts since well before 300 BC when Pythagoras wrote about his famous "theorem". The oldest mathematical document in the world, a little slab of clay that would fit in your hand, is a list of such triangles. So what is so fascinating about them? Tarsia With this software you will easily be able to create, print out, save and exchange customised jigsaws, domino activities and a variety of rectangular card sort activities. The activities created using this software can be presented in printable form, ready to cut out. Formulator Tarsia known earlier as Formulator Jigsaw is an editor designed for Teachers of Mathematics creating the activities in a form of jigsaws or dominos etc for later use in a class. It includes the powerful equation editor for building the math-expressions for the activities. An advanced feature of text placement along the side of the shape makes this tool irreplaceable software for fast activity creation. Formulator Tarsia became a powerful tool for learning activities since it supports the activity templates.

There's A Reason Why You Still Love The Music From Your Teen Years It's probably the latter. Psychologists and neuroscientists have recently determined that musical nostalgia isn't just a cultural phenomenon—it's wired in our brains. Even when your tastes progress past the Backstreet Boys, your brain is stuck on the formative years of your adolescence. In the era between your pre-teen years and early 20s, your brain is developing like never before, so it makes sense that the music you love during that time might be programmed in with the rest of your formative experiences. Solidifying these new neural landmarks is a rush of puberty hormones, which infuse everything with heightened emotion. That extra emotion gives your brain the signal that the memories are extra important.

Affine transformation An image of a fern-like fractal that exhibits affine self-similarity. Each of the leaves of the fern is related to each other leaf by an affine transformation. For instance, the red leaf can be transformed into both the dark blue leaf and the light blue leaf by a combination of reflection, rotation, scaling, and translation. If and Amazon is the invisible backbone behind ICE’s immigration crackdown In June, when the US Immigration and Customs Enforcement agency (ICE) began separating migrant children from their parents, several tech companies came under fire for providing the agency with the software that helped them do it. At the center of the criticism was data mining company Palantir, which designed the Investigative Case Management system. The ICM is a critical component of ICE’s deportation operations—it integrates a vast ecosystem of public and private data to track down immigrants and, in many cases, deport them. Little is known about how the software actually works or how extensively ICE uses it.

Trapezoid - Geometry Calculator Calculations at a trapezoid. A trapezoid (or trapezium) is a tetragon with two parellel sides. Enter three side lengths and one angle between two of those sides. Choose the number of decimal places and click Calculate. American Capitalism Is Brutal. You Can Trace That to the Plantation. A couple of years before he was convicted of securities fraud, Martin Shkreli was the chief executive of a pharmaceutical company that acquired the rights to Daraprim, a lifesaving antiparasitic drug. Previously the drug cost $13.50 a pill, but in Shkreli’s hands, the price quickly increased by a factor of 56, to $750 a pill. At a health care conference, Shkreli told the audience that he should have raised the price even higher.

How To Learn Trigonometry Intuitively Trig mnemonics like SOH-CAH-TOA focus on computations, not concepts: TOA explains the tangent about as well as x2+y2=r2 describes a circle. Sure, if you’re a math robot, an equation is enough. The rest of us, with organic brains half-dedicated to vision processing, seem to enjoy imagery.

Related: