All of the following are three-dimensional AV aids, EXCEPT

Appeared in: MNS 2024

Explanation

Charts are two-dimensional (2D) visual aids, meaning they only have length and width.
They are classified as graphic aids and are presented on a flat surface to display information.
Unlike 3D aids, charts do not possess depth and are not tangible replicas of real objects.

Option A: Models are incorrect because they are, by definition, three-dimensional representations of real objects.
Option B: Puppets are incorrect as they are manipulative dolls, which are physical, three-dimensional figures.
Option D: Specimens are incorrect because they are real objects or samples of real objects, making them inherently three-dimensional.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Audio-Visual (AV) Aids as background academic context rather than a clinical decision trigger.
In nursing education and patient teaching, choosing the right AV aid is crucial for effective communication.
A nurse might use a 3D model of the heart to explain a cardiac procedure to a patient, as it provides a more concrete understanding than a 2D chart.
Conversely, a 2D chart is excellent for displaying dietary guidelines or a medication schedule in a clear, easy-to-read format.

How to Approach the Question

First, identify the key concept in the question stem, which is 'three-dimensional AV aids'.
Next, notice the critical keyword 'EXCEPT'. This tells you to look for the option that does not fit into the category of 'three-dimensional AV aids'.
Define 'three-dimensional' in your mind: an object having height, width, and depth.
Evaluate each option against this definition: Is a model 3D? Yes. Is a puppet 3D? Yes. Is a specimen 3D? Yes.
Evaluate the remaining option: Is a chart 3D? No, it's a flat, 2D representation.
Therefore, 'Charts' is the correct answer because it is the exception to the group.

Concept Tested & Keywords

Concept Tested: Classification of Audio-Visual (AV) Aids
Stem keywords: three-dimensional, AV aids
Lead-in keywords: EXCEPT
Negative lead-in flag: The question asks for the item that does NOT belong to the specified category (three-dimensional aids).

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E6 Nursing Education & Educational TechnologySuresh k Sharma (pp 21-557 of 572) pp. 310-312, 313-315

E6 Essentials of Educational Technology Nursing EducationL Gopichandran C Kanniammal (pp 39-344 of 355) p. 204-206

Practise the full MNS 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.