Algebraic Formulas News Today

While scissors congruence accurately captures the modern algebraic notion of 2D area, things get more complicated in higher dimensions. Maxine Calle, CC BY-NDIn math class, you probably learned how to compute the area of lots of different shapes by memorizing algebraic formulas. Remember “base x height” for rectangles and “½ base x height” for triangles? Or “𝜋 x radius²” for circles? But if you were in math class in ancient Greece, you ...

>> reporter: the changes take effect in 2016. and they are meant to level the playing field. some s.a.t. prep courses can run as high as $20,000. now the college board is fighting back making tutoring videos available for free. other changes in the test itself make the s.a.t. more like its biggest rival, the a.c.t. which has been rapidly gaining ground. and while writing an essay will become optional in the new test, anxious high schoolers shouldnt celebrate just yet. algebraic formulas arent go...

Instead focus on the words students will use over and over again. >> reporter: the changes take effect in 2016. and they are meant to level the playing field. some s.a.t. prep courses can run as high as $20,000. now the college board is fighting back making tutoring videos available for free. other changes in the test itself make the s.a.t. more like its biggest rival, the a.c.t. which has been rapidly gaining ground. and while writing an essay will become optional in the new test, anxious high ...