There is now less space and greater air pressure

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There is now less space and greater air pressure inside the lungs. It pushes the air outside where there is lower air pressure. Specific Learning Objectives Knowledg e Explain how the lungs work; Skills Describe how the movement of the diaphragm helps the air go in and out of the lungs; Attitudes Act responsibly in taking care of the lungs. Values Show concern with the body’s breathing machine. 2. CONTENT RESPIRATORY SYSTEM WORKING WITH OTHER ORGAN SYSTEMS 3. LEARNING RESOURCES Reference s EASE BIOLOGY M11 Energy Producing & Distributing Systems Lesson 1 LM, pp 3-5 Materials Pictures, info sheet 4. PROCEDURES 4.1 Introductory Activity Introduce the lesson by asking the students to place their arms on their chest and feel the up and down movements of the ribs during inhalation and exhalation. Introduce the air passageway in body by making a simple drawing on board. 4.2 Activity Class Activity: Group the class into 5 or 6 Perform the activity “Bottled Balloons” on the LM pp. 6-7 4.3 Analysis Guide Questions: 1. What does each part of the constructed lung model represent?
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