blackboard
黒板
Blackboard Jungle
Chalkboard gag from The Simpsons
Chalkzone
Conic Sections Rebellion, an 1830 student uprising when Yale students were required to draw their own diagrams on the blackboard
Tacita Dean, an artist who often uses blackboards in her work
Sidewalk chalk
Simon in the Land of Chalk Drawings
Slate
Sound of fingernails scraping chalkboard
whiteboard
/suto3/google.iconblackboard
image blackboard
define blackboard
wikipedia blackboard
weblio blackboard
kotobank blackboard
jisho blackboard