Lesson 9 - Teacher's Manual pages 152-163.
Go to http://sd25.sciencecompanionprime.com.
Sign in using your d25 sign-in and sd25 _ _ _ _ password.
To move, many parts of our bodies must work together. To produce the energy needed for movement, muscle cells need a constant supply of oxygen, nutrients, and water.
- What is breathing?
- How does breathing happen?
- Why is breathing important?
- Put your hands on your rib cage while breathing in and out.
- Explain what the lungs are doing during inhalation and exhalation.
Go over vocabulary:
- breathing rate: the number of times you breathe in and out in one minute.
- carbon dioxide: a waste product made by cells that is removed from our blood and lungs when we exhale.
- diaphragm: a large muscle just below the lungs. Air empties or fills our lungs when our diaphragms move.
- lungs: the main organs of the respiratory system. Our lungs deliver oxygen to the blood and remove carbon dioxide from the blood.
- respiratory system: the body system that brings oxygen into our bodies and removes carbon dioxide from our bodies.
- What effect do you think exercise will have on breathing rate?
- Show me some activities that will keep your breathing rate slow.
- Show me some activities that will increase your breathing rate.
- Why did your breathing rate increase?
- Discuss how air flows in our body with the poster.
- Partner students up with sticks.
- Read SRB pages 69-76.
- While you wait for others to finish, research breathing problems like asthma. Be ready to experience why they have trouble breathing and what it feels like.
- Create a new blog entry entitled, "Breathing Hard for Our Muscles."
- Do the activity using these directions or try these.
- Fill in all of the blanks.
- Take screen shots of each question & answer and put it into the blog entry.
Synthesis Questions (Please add these to the end of your blog post):
- What did breathing through straws represent?
- Why should we have this experience?
- It was difficult to continue moving when you breathed through the straw. Why is that?
- What are some things that affect the respiratory system and make it harder to breathe?
- How would your daily life be affected if you could only breathe in small amounts of air with each breath?
Want more Teachers?