Secondary 2 – Biology: Human Respiratory System
Secondary 2 students recently explored the human respiratory system through an engaging and informative activity. Each student was tasked with drawing a diagram of the respiratory organs, including the nose, trachea, bronchi, lungs, and diaphragm. After completing their diagrams, they carefully labelled each part to ensure accuracy.
Following the labelling task, students explained the function of each organ. For example, the nose filters the air, the trachea serves as an air passage, the lungs are responsible for exchanging oxygen and carbon dioxide, and the diaphragm supports the movement of breathing. Through this process, students examined how each organ functions individually and how they work together as an integrated system. They analysed the importance of coordination between organs in maintaining the body’s oxygen supply and removing carbon dioxide—encouraging them to move beyond memorisation and connect anatomical structures with their respective functions.
The activity concluded with a reflection session where students discussed ways to maintain respiratory health in daily life. They connected their learning to real-world issues such as the impact of smoking, air pollution, and physical exercise on the respiratory system.
This learning experience not only deepened students’ understanding of human biology but also encouraged them to apply their knowledge to practical, everyday choices that support a healthy lifestyle. ***
