The pointy edges of petals rely on a type of geometric feedback never before seen in nature.

Unlike the smooth contours of other flowers, the originally curved petals of roses end up forming polygons with straight ...

Districts can offer high school math the traditional American way or blend Algebra and Geometry together, the way other nations do. The choice has set off heated discussions. See accompanying article.

“Many geometry standards are not highly aligned with the prerequisite competencies for post-secondary mathematics success,” prioritizing algebra for college readiness. The new high school math ...