Category
page 1Educational devices

blackboard
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, better known as chalk.
mind map
diagram to visually organize information
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whiteboard
thumb|Researcher writing on a whiteboard
thumb|Whiteboard with marker and eraser
A whiteboard (also known as 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. The popularity of whiteboards increased rapidly in the mid-1990s and they have become a fixture in many offices, meeting rooms, school classrooms, public events and other work environments.
flip chart
stationery item consisting of a pad of large paper sheets, often used in presentations
slate
thin piece of flat material used as a medium for writing

birching
thumb|Birching of a prison inmate during interrogation; The Netherlands, 17th century
chalkboard eraser
Type of eraser designed to erase chalk