Historical Development of Educational Technology: The Age of Book and Chalkboard

This video discusses the age of the book and chalkboard as the historical development of Educational Technology.

In 1456, Johann Guttenberg developed the printing machine with which he was reputed to have printed the first Bible. With this invention, the art of printing spread widely and other books were produced. With information explosion, there was wider spread of awareness and knowledge acquisition. Many people were interested in learning thus it became obvious that “one and one” teacher-pupil interaction as was the situation prior to the invention of the printing machine was no longer workable. This paved way for the assemblage of students at a place for the teacher to attend to simultaneously. The resultant effect of this group communication was the invention of the chalkboard which was popularly known by then as blackboard. The board served as a central point of focus for all the students. It also provided the teacher a place to write down important points, diagrams and symbols. Now, we have different kinds of board in circulation. Mention could be made of wall boards, portable boards, easel board, and magnetic board etc.