slate and chalk
- blackboardSurface for chalk writing
- chalkboardSurface for dusty writing
- writingRecorded language on surface
- classroomEducational instruction space
- schoolPlace of instruction
dusty · gray · stone · tile · roof · quarry · pencil · eraser · white · powder · cliffs · limestone · sediment · scribble · lesson · teacher · tablet · shale
similarity vs difference
slate and chalktwo peas in a pod
like two peas in a pod · birds of a feather · cut from the same cloth · identical twins · carbon copies
writing technology
slate and chalkiPad
Apple's tablet device
digital whiteboard · smartboard · touchscreen · laptop · computer screen