School Slate Chalkboard amazon Office School Supplies Presentation BoardsVintage Framed Slate Kitchen Chalkboard 10 x 14 Decorative Chalk Board for Rustic Wedding Signs Kitchen Pantry Wall Decor School Slate Chalkboard blackboard also known as a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate known when used for this purpose as chalk Blackboards were originally made of smooth thin sheets of black or dark grey slate stone slate articles life education 2014 10 a history of the Oct 15 2014 The chalkboard centered classroom offers more than pedagogical efficiency it also offers an effective set of teaching possibilities Photo by Thinkstock Excerpted from Blackboard A School Slate Chalkboard wordreference es translation asp tranword chalkboardchalkboard Translation to Spanish pronunciation and forum discussions edudemic UpdatesThe insurance industry had a cheaper easier to use a