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Middle School Science Department: Seventh Graders Explore Visual Mysteries Through Pig Eye Dissection

April 10, 2025

On the afternoon of March 31, seventh-grade students delved into the workings of the visual system by dissecting pig eyes under their teacher’s guidance. As an innovative hands-on session in the human body systems curriculum, this activity transformed abstract theories into tangible scientific exploration.

The class adopted a collaborative group format. After the teacher demonstrated proper procedures, students donned latex gloves and carefully cut along the midline of the sclera using dissection scissors. As the glistening vitreous body slid into a petri dish, exclamations of wonder echoed across the classroom. With magnifying glasses, students observed the radial patterns of the iris and the biconvex structure of the lens, turning textbook diagrams into three-dimensional teaching aids. One student excitedly held up the extracted lens, exclaiming, "It really works as a magnifying glass!" and promptly used it to enlarge text in the lab manual, visually confirming the principles of light refraction. While dissecting the optic nerve, students touched the "biological fiber optic cable" connecting the eye to the brain, gaining a deeper understanding of visual signal transmission. The session concluded with a science segment on corneal donation, highlighting the selfless compassion behind medical advancements.

This immersive dissection class not only brought textbook knowledge to life but also ignited the students' passion for discovery. As students left the lab, they were already eagerly anticipating next month’s hands-on exploration of the respiratory system through pig lung dissection.







(Written by Rongzhang Hu   Pictures by Rongzhang Hu   Proofread by Cong Luo, Judah Kuhn )