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Subject: Physical Education
Semester: 2
Period: 5
Week: 28
School Name: __________________________
Teacher’s Name: ________________________
Subject: Physical Education
Grade Level: Grade 12
Week & Period: Week 28, Period V
Date: __________________________
Topic: Basic Human Anatomy & Physiology
Subtopic: Respiratory and Circulatory Systems
Learning Objectives:
By the end of this lesson, learners should be able to:
- Describe the main structures and functions of the respiratory system.
- Explain the relationship between the respiratory and circulatory systems during physical activity.
- Discuss how these systems work together to supply oxygen and remove carbon dioxide.
- Identify the effects of exercise on respiration and circulation.
Previous Knowledge:
Learners have studied the cardiovascular system and basic anatomy related to physical activities.
Instructional Materials:
- Diagrams/models of the respiratory system (lungs, trachea, diaphragm)
- Video clips showing breathing mechanics and oxygen transport
- Whiteboard and markers
- Handouts summarizing respiratory and circulatory system functions
ABC Teaching Model
A - Anticipation (Warm-Up) – 5 minutes
- Ask: “How does your breathing change when you run or exercise?”
- Activity: Learners measure their breathing rate at rest and after light jogging.
B - Building Knowledge (Main Lesson) – 25 minutes
Respiratory System:
- Main parts: nose, trachea, bronchi, lungs, alveoli, diaphragm
- Functions: intake of oxygen, removal of carbon dioxide, regulation of breathing
Circulatory System (Recap):
- Blood vessels, heart, blood
- Role in transporting oxygen and nutrients
Interaction During Exercise:
- Increased breathing rate supplies more oxygen
- Oxygen absorbed in alveoli passes to blood
- Heart pumps oxygenated blood to muscles
- Carbon dioxide is carried back to lungs for exhalation
Effects of Exercise:
- Increased respiratory and heart rates
- Greater lung capacity over time with training
- Improved oxygen efficiency
Learners’ Activities:
- Label diagrams of respiratory and circulatory systems.
- Practice measuring breathing and pulse rates before and after exercise.
- Group discussion on how breathing and heart rate support sports performance.
- Demonstrate diaphragm movement using balloons or models.
C - Consolidation (Review and Assessment) – 10 minutes
Review Questions:
- What is the main function of the respiratory system?
- How do the respiratory and circulatory systems work together during exercise?
- Why does breathing rate increase during physical activity?
Mini Quiz:
- The organ responsible for gas exchange is the:
Heart
B. Lungs
C. Brain
D. Liver - Oxygen is carried to muscles by:
Blood
B. Air
C. Water
D. Nerves
Assignment:
- Write a paragraph explaining the journey of oxygen from the air to the muscles during exercise.
- Research and present on respiratory diseases affecting athletes.
- Create a chart comparing breathing rates at rest and during exercise.
Detailed Notes:
- The respiratory system supplies oxygen needed for muscle energy production.
- Circulatory system transports oxygen and removes waste gases.
- Efficient functioning of both systems is crucial for endurance and performance.
Expanded Instructions:
- Use practical demonstrations to make concepts concrete.
- Encourage hands-on measurement and data recording.
- Provide clear visuals and simplified explanations.
Inclusive/Differentiation:
- Offer varied resources (videos, diagrams, text) to suit all learners.
- Allow oral or group presentations for assignments.
- Pair stronger learners with those needing help for practical activities.
Teacher’s Reflection:
- Did learners grasp the respiratory system’s role in physical activity?
- Were they able to accurately measure and compare breathing rates?
- How did group discussions enhance understanding?
- What modifications could increase lesson effectiveness?