It started with Visual Instruction which emphasised the use of visual material to make more concrete the abstract ideas being taught; classified the types of visual aids and emphasised the need to integrate visual materials with instruction.
From Visual Instruction to Audio Instruction – had impetus from the coming of sound recording motion pictures. Both visual and audio visual instruction movements emphasised “things, sense and correctness”.
From Audio Visual Inspection to Communication – emphasis began to shift from devices (equipment) and materials to the process of communicating information from source (teacher) to the receiver (learner)
From Audio Visual Instruction to Early System Concepts – the systems concept of educational technology revolutionised the field with its emphasis on the identification and integration of components of a system with a view to increasing system efficiency.
The communication and system concepts above were the two dominant features and characteristics in the field in the early 1960s.
Audio Visual Communication – Synthesising communications and early system concepts: The planning, production, selection, management and utilisation of the components of the entire instructional system were now emphasized. Watch Video