Mathematics
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Algebrahelp.com is a collection of lessons, calculators, and worksheets created to assist students and teachers of algebra. Here are a few of the ways you can learn here... Lessons Explore one of our dozens of lessons on key algebra topics like Equations , Simplifying and Factoring .
Algebra.Help -- Calculators, Lessons, and Worksheets - StumbleUpon
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BBC News - How do you assess a 14-year-old maths genius?
Blog : Test Your “Subitizing” Ability
Recently I found myself reading about “ subitizing ”, which is the process of instinctively counting small sets of items in a fraction of second. For example, try quickly counting a few of these: The Wikipedia article indicates that you can nearly always correctly count four or fewer items in a small fraction of a second. Above four, you start to make mistakes.The Education Reform Act of 1988 established, amongst other things, the idea of a National Curriculum (NC) for England, Wales and Northern Ireland. The National Curriculum set out to “promote the spiritual, moral, cultural, mental and physical development of pupils at the school and of society”; and “prepare such…
National STEM Centre - Browse Collection
Nerd Paradise : Divisibility Rules for Arbitrary Divisors
It's rather obvious when a number is divisible by 2 or 5, and some of you probably know how to tell if a number is divisible by 3, but it is possible to figure out the division 'rule' for any number. Here are the rules for 2 through 11... Cut the number into 2 parts: the last digit and everything else before that.
We can find interactive sites on the internet (like this ) to draw points, move them, and check how the structure becomes updated in real time. In fact, if we have a series of random dots scattered in the plane, the best way of finding the correct Voronoi Telesación for this set is using the Delaunay triangulation. And in fact, this is precisely the idea shown on the animation: first the Delaunay Triangulation and then, subsequently, the Voronoi Tessellation . But to draw a correct Delaunay Triangulation is necessary to meet the so-called “Delaunay Condition”. This means that: a network of triangles could be considered Delaunay Triangulation if all circumcircles of all triangles of the network are “empty”. Notice that actually, given a certain number of points in the plane there is no single way to draw triangles, there are many.
Nature by numbers. The theory behind this movie
Jacco vanderKooij on With revolutionary services coming out at a high pace we need to change the way we train our sales professionals to ramp them quicker make ...
Math is not linear by Alison Blank on Prezi
Prezi is simple: You Write, Zoom, Arrange.Using these simple means, you can express many things - with great impact.Here are some basic examples such as ...
Playing to Learn Math? by Maria Andersen on Prezi
Matrices, vectors, vector spaces, transformations. Covers all topics in a first year college linear algebra course. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.
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Free Mathematics Books
(graph above: absolute value of the gamma function in the complex plane, source: Wikimedia Commons) Here is an alphabetical list of online mathematics books, textbooks, monographs, lecture notes, and other mathematics related documents freely available on the web. I tried to select only the works in book formats, "real" books that are mainly in PDF format, so many well-known html-based mathematics web pages and online tutorials are left out. Click here if you prefer a categorized directory of mathematics books . The list is updated almost on a daily basis, so, if you want to bookmark this page, use the button in the upper right corner.Thanks for visiting! Right now you're on NUMBERNUT.COM . If you are looking for math information, stay on this site.
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The icon means there is a Things to do investigation at the end of the section. Let's look first at the Rabbit Puzzle that Fibonacci wrote about and then at two adaptations of it to make it more realistic. This introduces you to the Fibonacci Number series and the simple definition of the whole never-ending series. Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits.
The Fibonacci Numbers and Golden section in Nature - 1
Scale/Ratio/Proportions
Your pearltree is like the best math collection I've ever seen;
The way those 45 pearls take over my screen is spooky
in a good way. In my spare time I'll be back to explore this. :) by virttree Oct 9