But forty of us sitting within four walls of classrooms all day long for seven years with attention focused on teachers and blackboards overweighed the other small pleasures. Source: Internet
Kevin Sloan looks to the city’s past for images to fill the restaurant's blackboards. Source: Internet
In that time we have seen the move from ink pens to ball points, from blackboards to whiteboards to laptops. Source: Internet
The blackboards served to separate one classroom from the other. Source: Internet
He provided the teacher with sketches and diagrams covering several blackboards to show how it might be accomplished electronically. Source: Internet
The pioneer air traffic controllers used maps, blackboards, and mental calculations to ensure the safe separation of aircraft traveling along designated routes between cities. Source: Internet