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New Activity

The latest activity to be updated on this site is called "Fractions, Decimals, Percentages" (An exercise on converting fractions to decimals, decimals to percentages and percentages to fractions.).

So far this activity has been accessed 11730 times and 2649 people have earned a Transum Trophy for completing it.

Featured Activity

Roman Numerals Quiz

Roman Numerals Quiz

You may understand our number system better by learning about another number system. A basic knowledge of Roman numerals will allow you to complete level one of this self marking quiz. Beyond level one will require a little more!

Recent News:

Blue Brain solves a century-old neuroscience problem

New research explains how the shapes of neurons can be classified using mathematical methods from the field of algebraic topology. Neuroscientists can now start building a formal catalogue for all the types of cells in the brain. Onto this catalogue of cells, they can systematically map the function and role in disease of each type of neuron in the brain. more...

Origins and nature of 'math anxiety'

A report out today examines the factors that influence 'math anxiety' among primary and secondary school students, showing that teachers and parents may inadvertently play a role in a child's development of the condition, and that girls tend to be more affected than boys. more...

Probability of catastrophic geomagnetic storm lower than estimated

According to a group of mathematics researchers, the probability in the following decade of the sun causing a storm strong enough to affect electrical and communication infrastructures around the globe 'only' reaches 1.9 percent maximum. Nevertheless, the event would produce severe consequences and governments should be prepared, researchers warn. more...

For infection-fighting cells, a guideline for expanding the troops

A new study uses mathematical modeling to explain how T cells, part of the body's key defenses against pathogens, expand to fight a new infection. The team found that the amount of T-cell expansion is related to the quantity of infectious material, or antigen, as well as the stickiness with which the T cell binds the antigen. more...

Mathematics of sea slug movement points to future robots

Mathematicians recently discovered a lot of new, powerful geometries involved in frilly surfaces. They developed the mathematics to describe these surfaces -- inflected nonsmooth surfaces, which change the direction in which they bend -- and the combination of new geometry insights and age-old slugs might just be the right combination for a new generation of flexible, energy-efficient soft-bodied robots. more...

Mathematical rules underlie the ancient art of knitting

Knitting may be an ancient manufacturing method, but one researcher believes that understanding how different stitch types determine shape and mechanical strength will be invaluable for designing materials for future technologies, and a more detailed understanding of the knitting 'code' could benefit manufacturers around the world. Researchers are delving through the surprisingly complex mathematics that underlies tangles of yarn. more...

Do all networks obey the scale-free law? Maybe not

A new study debunks a popular, two-decade-old theory about the shape of networks. more...

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