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

Appeared in: DSSSB 14 August 2024

Explanation

Charts are classified as two-dimensional (2D) aids because they are flat and possess only length and width.
Examples include flip charts, flow charts, and posters, which present information graphically on a flat surface.
The question asks for the exception to three-dimensional aids, making charts the correct choice as they are 2D.

Option A: Models are classic examples of three-dimensional aids. They are tangible representations of real objects, allowing learners to understand an object's structure and form in height, width, and depth.
Option B: Puppets are 3D figures manipulated by a person. They are used for storytelling, role-playing, and engaging learners, providing a tangible and interactive learning tool.
Option D: Specimens are actual objects or samples of real objects (e.g., a preserved organ, a rock sample) used for direct observation. They are 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 by dimensionality (2D vs. 3D) as background academic context rather than a clinical decision trigger.
In patient and nursing education, the choice of AV aid impacts learning effectiveness. 3D aids like models are excellent for teaching psychomotor skills or complex anatomical structures.
2D aids like charts are ideal for summarizing information, outlining steps in a process (flow charts), or displaying data (graphs).
A nurse educator must select the appropriate aid based on the learning objective and the audience's needs to ensure the information is understood and retained.

How to Approach the Question

First, identify the core concept of the question, which is the classification of audio-visual (AV) aids.
Pay close attention to the keyword 'EXCEPT'. This signals that you must find the option that does not fit the category mentioned in the stem.
The category specified is 'three-dimensional AV aids'.
Evaluate each option based on its physical properties: does it have length, width, and depth (3D), or only length and width (2D)?
Analyze the options: Models, Puppets, and Specimens are all physical objects that you can hold and view from all sides, confirming they are 3D.
A Chart is a flat surface, like a piece of paper or a poster, which only has two dimensions.

Concept Tested & Keywords

Concept Tested: Classification of audio-visual (AV) aids by dimensionality (2D vs. 3D)
Stem keywords: three-dimensional, AV aids
Lead-in keywords: EXCEPT
Negative lead-in flag: The question uses the word 'EXCEPT', requiring identification of the option 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, 290-292

E6 Essentials of Educational Technology Nursing EducationL Gopichandran C Kanniammal (pp 39-344 of 355) p. 177-179

Practise the full DSSSB 14 August 2024

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