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A whiteboard (also known by marker board, dry-erase board, dry-wipe board, and pen-board) is a glossy, usually white surface for making non-permanent markings. Whiteboards are analogous to blackboards , but with a smoother surface allowing for rapid marking and erasing of markings on their surface.
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 ...
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 Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
A permanent marker can also be removed by drawing over it with a dry erase marker on non-porous surfaces such as a whiteboard, [3] as dry erase markers also contain a non-polar solvent. Most dry-erase board cleaner solutions also contain effective organic solvents like 2-butoxyethanol to remove the pigment.
Blackboard Analytics was developed after the company acquired iStrategy, a data analysis firm, in December 2010. [31] The Blackboard Analytics platform is a system for data warehousing and analysis, with applications for educational institutions to analyze student numbers, class scheduling, and financial information. The platform was created as ...
Lozenge marks represent a later technology that is easier to mark and easier to erase. The large "bubble" marks are legacy technology from very early OMR machines that were so insensitive a large mark was required for reliability. In most Asian countries, a special marker is used to fill in an optical answer sheet. Students, likewise, mark ...
Crayola LLC produces a broad range of products other than their famous crayons under the Crayola brand name. These include colored pencils, markers, inks and paints, modeling clays, coloring books, and artists' tools. As with all Crayola products, these are all marketed as non-toxic and safe for use by children. [55]
The Magic Slate consists of a piece of rigid cardboard the size of a small clipboard that is covered with dark waxed paper on one side, a sheet of translucent plastic film that covers the waxed paper and is affixed to the top of the board, and a blunt stylus made of wood or plastic.
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