Which of the following is NOT a visual teaching-learning materials?

Option 2 : Radio broadcast

Teaching materials/aids are tools that are used by teachers to help learners to learn concepts with ease and efficiency. The role of teaching aids in the classroom is to make learning real, practical, and fun for children.

• Teachers use aids to illustrate or reinforce a skill, fact, or idea. They also help in bringing novelty and freshness in classroom teaching as it relieves learners from anxiety, fear, and boredom.
• Teaching aids are of various types and thus are classified and categorized in several ways. They can broadly be classified into three categories i.e. Audio aids, Visual aids, and Audio-visual aids.

​Visual Materials/Aids:

• It refers to the aids which maximize learning with the help of the visual system. It activates the sense of vision to enrich learners' knowledge and for heightening their intellectual abilities.
• Visual aids used in the Language teaching/learning process help in the attainment of all objectives of teaching, i.e., cognitive, affective, and psychomotor.
• These aids include graphic aids, display boards, print material, charts, blackboards, maps, flashcards, magazines and newspapers, reference books, etc.

Hence it could be concluded that Radio broadcast is NOT a visual teaching-learning material.

Hint 

• Radio broadcast is an audio teaching material that is used to maximize learning with the help of the auditory system. Radio provides speeches and debates of eminent educationists to the students on national and international problems.