Which of the following is NOT a suitable learning material for students who are partially sighted ?

The correct answer is Small-print worksheets.

Explanation:

Students who are partially sighted have reduced visual acuity and face difficulties reading standard or small text. Teaching and learning materials for partially sighted students should be designed to accommodate their sensory needs by enhancing visual legibility or leveraging auditory and tactile senses.

Let us analyze the given options:

1. Large-print books: These provide enlarged text size, high contrast, and better clarity, making it easier for partially sighted students to read without eye strain. Hence, this is a suitable material.

2. Three-dimensional maps and charts: These tactile materials allow students to learn through the sense of touch, making visual information accessible tactilely. Hence, this is a suitable material.

3. Talking books, felt bulletin boards: Audio resources (talking books) utilize the auditory sense, while felt bulletin boards provide tactile engagement. Both are effective learning aids for visually impaired students. Hence, this is a suitable material.

4. Small-print worksheets: Small font sizes are extremely difficult or impossible for partially sighted students to read, causing strain and hindering their learning process. Therefore, small-print worksheets are NOT suitable learning materials for partially sighted students.