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2. Blackboard - Wikipedia

   en.wikipedia.org/wiki/Blackboard

   Stick-slip effect with a chalk on a blackboard. Chalk sticks are produced in white and in various colours, especially for use with blackboards. White chalk sticks are made mainly from calcium carbonate derived from mineral chalk or limestone, while coloured chalk sticks are made from calcium sulphate in its dihydrate form, CaSO 4 ·2H 2 O, derived from gypsum.

3. Chalkboard eraser - Wikipedia

   en.wikipedia.org/wiki/Chalkboard_eraser

   A chalkboard eraser (sometimes known as a duster in India and elsewhere [1] [2]) is a special type of eraser specifically used to erase chalk markings on slating paint (used on chalkboards and slates). It is most commonly made of felt strips attached to a handle. Chalkboard erasers are typically broad and rectangular, intended to clear large ...

4. Tally marks - Wikipedia

   en.wikipedia.org/wiki/Tally_marks

   Tally marks on a chalkboard Counting using tally marks at Hanakapiai Beach. The number shown is 82. Tally marks, also called hash marks, are a form of numeral used for counting. They can be thought of as a unary numeral system.

5. Hagoromo Fulltouch Chalk - Wikipedia

   en.wikipedia.org/wiki/Hagoromo_Fulltouch_Chalk

   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.

6. This Gorgeous Fall Garland Can Be Made With Leaves ... - AOL

   www.aol.com/lifestyle/gorgeous-fall-garland-made...

   Glue and chalk come make the perfect pairing for this craft. ... Get creative as you draw the lion's nose and whiskers and use a black marker, a charcoal pencil, or paint for the eyes and pupils ...

7. Whiteboard - Wikipedia

   en.wikipedia.org/wiki/Whiteboard

   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.