Lesson Notes By Weeks and Term v3 - Senior Secondary 1

Lesson Video

This page supports the lesson note with a companion video and a short classroom-ready summary.

Performance objectives

• describe the structure of the lungs
• state the functions of the lungs
• discuss types of respiration
• describe what takes place in respiration during exercises

Lesson summary

This lesson introduces students to the human respiratory system, a fundamental biological system crucial for sustaining life, especially during physical activities. Understanding the respiratory system is vital for comprehending how the body obtains oxygen and expels carbon dioxide, processes that are significantly modulated during exercise. For Nigerian learners, this knowledge provides insight into optimizing physical performance in sports like football or athletics, understanding health conditions such as asthma which are prevalent, and appreciating the physiological demands on individuals engaged in manual labour typical in many Nigerian communities.

Teacher activity

• Begin by asking students about their experience with breathing, especially during physical activity. Elicit responses by asking: "What happens to your breathing when you run fast, or after a tough PE session?" Introduce the concept of the respiratory system as the body's 'air conditioning' and 'waste disposal' system for gases. State the lesson objectives clearly.

Evaluation guide

• A. Formative Assessment
• Observation: Teacher observes student participation in discussions, ability to identify structures on diagrams, and demonstration of breathing mechanics.
• Question and Answer (Q&A): Throughout the lesson, ask targeted questions to check understanding of concepts.
• "Can anyone point to the trachea on this diagram?"
• "What gas do our body cells produce that we need to get rid of?"

Reference guide

• CD-ROMS
• Projectors
• Pictures
• Text books
• Diagrams