Logic hacking - "Writing shorter and shorter computer programs for which it's unknowable whether these programs run forever, or stop... the winner of the Busy Beaver Game for N-state Turing machines becomes unknowable using ordinary math - somewhere between N = 5 and N = 1919." [more inside]
The Washington Post reports on a ridiculous mathematics test for first graders administered under New York's Common Core standards initiative. [Common Core previously.]
Fun and games with mathematics and mathematical puzzles (e.g. heart basket, Rubik's Cube, Rubik's Magic, hypercubes, and more) in both English and (with yet more content in) German.
The Narrow Road : in which a professional mathematician guides you through pure mathematics (and touches on tangential issues).
School's mathematics don't add up! PS 234, a primary school in TriBeCa, is at the forefront of the revolution in math instruction being carried out in more than half of New York City's schools. The district's approach to math instruction follows an egalitarian theory called "constructivist math," which is the idea that children shouldn't learn basic techniques for adding, subtracting, dividing and multiplying. Rather, emphasis is placed on "feeling good about numbers" etc. Said one angry parent, "The idea that the home has to be turned into the school because the school is the testing ground for inane programs - that's frightening." And leading university mathematicians have joined parent groups in denouncing the method. All things concidered, is it right for schools to use children as guinea pigs in this manner?