A tessellation is a repeating pattern of polygons that covers a plane with no gaps or overlaps. What kind of tessellations can you make out of regular polygons? What shapes tessellate? If shapes can ...

In this grade-by-grade guide, you'll find math standards, English and language arts standards and tips for social skills and physical development from preschool through high school.

MANILA, Philippines — Former Senate president, now Chief Presidential Legal Counsel Juan Ponce Enrile, warned Vice President Sara Duterte's alleged threats on the life of President Ferdinand Marcos Jr ...

Geometry Dash players looking to add some extra icons and colors can gain access to a set of three vaults; The Vault, The Vault of Secrets, and The Chamber of Time, all of which come with their ...

President Trump addresses a reception honoring Black History Month in the East Room of the White House on Thursday. (Jabin Botsford/The Washington Post via Getty Images) ...

With 80 minutes on the clock, FC Dallas had one hand on the Brimstone Cup. Seventeen minutes later, Sergii Demianchuk blew his whistle, signaling Gregg Berhalter’s first win with a seemingly ...

The US aircraft carrying the third batch of Indian immigrants landed at the Shri Guru Ram Dass International Airport in Amritsar on Sunday. Security personnel outside the Sri Guru Ram Dass Jee ...

Based on Capitol Hill, Matt Laslo has been covering campaigns and every aspect of federal policy since 2006. In addition to his reporting for Raw Story, Matt has been a contributor at WIRED, VICE ...

Main purpose of the GeometRi library is manipulations with basic geometrical primitives, such as point, line, plane, sphere, triangle in 3D space: translation and rotation operations, distance ...

Build up to algebraic thinking by exploring this balance tool using shapes of unknown weight. Challenge yourself to find the weight of each shape in one of six built-in sets or a random set. Two other ...