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A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
Chalkboard art or chalk art is the use of chalk on a blackboard as a visual art. [1] It is similar to art using pastels and related to sidewalk art that often uses chalk. Chalkboard art is often used in restaurants, shops or walls. [2] Chalkboard art has also been done on large boards while storytelling on beaches and in Churches.
Boxes of Hagoromo Fulltouch Chalk, produced by Hagoromo Bungu. Hagoromo Fulltouch Chalk (Japanese: 羽衣フルタッチチョーク, Korean: 하고로모 풀터치 분필) is a South Korean-owned brand of chalk for blackboards, originally produced by Japanese company Hagoromo Bungu (羽衣文具). Production of the chalk began in 1932.
The American Mathematical Society created a simple chalk-style blackboard bold typeface in 1985 to go with the AMS-TeX package created by Michael Spivak, accessed using the \Bbb command (for "blackboard bold"); in 1990, the AMS released an update with a new inline-style blackboard bold font intended to better match Times. [17]
Blackboard Learn (previously the Blackboard Learning Management System) is a web-based virtual learning environment and learning management system developed by Blackboard Inc. The software features course management, customizable open architecture , and scalable design that allows integration with student information systems and authentication ...
Chalk is a type of sedimentary rock, composed predominantly of calcium carbonate. Chalk may also refer to: The Chalk Group, a stratigraphic unit in northwest Europe. The Chalk country, a region of Discworld; Blackboard chalk and sidewalk chalk, a material used for writing and art, usually composed of calcium sulfate or calcium carbonate.
A chalkboard-painted wall surface. Chalkboard paint is a specialized paint that creates a chalkboard-like coating that can be utilized as a writing surface in the same manner as a traditional chalkboard.
Chalk art by kids in the Czech Republic. On September 16–17, 2006, a global event was held to promote peace through sidewalk chalk drawings. [5] Chalk4Peace was a project planned by an artist from Arlington, Virginia named John Aaron, who asked children and teens from the age of eight to age eighteen to participate in groups across the world to draw chalk drawings that would illustrate peace ...