Understanding oxygen and nutrients in your blood: Grade 3 health lesson.

📚 Understanding Oxygen and Nutrients in Your Blood: A Grade 3 Health Lesson

This lesson will help you understand how your blood carries oxygen and nutrients to all parts of your body, keeping you healthy and strong.

🎯 Objectives

• 🎯 Define oxygen and nutrients.
• 🩸 Explain the role of blood in carrying oxygen and nutrients.
• 💪 Identify the importance of oxygen and nutrients for a healthy body.

📝 Materials

• 🖼️ Pictures or diagrams of the human body and blood vessels
• 🍎 Examples of nutrient-rich foods (fruits, vegetables)
• 🫁 A simple model of lungs (optional)

☀️ Warm-up (5 minutes)

• 🗣️ Ask students: "What do you need to stay alive and have energy?" (Possible answers: food, water, air)
• ❓ Briefly discuss their answers and introduce the topic of oxygen and nutrients.

🧠 Main Instruction

🩸 What is Blood?

• 🔬 Explain that blood is a special liquid in our bodies.
• 🚚 It travels through tubes called blood vessels.
• 🔄 Blood carries important things to every part of our body.

🫁 What is Oxygen?

• 💨 Explain that oxygen is a gas in the air we breathe.
• 👃 We breathe in oxygen through our lungs.
• 🩸 Blood picks up oxygen in the lungs.
• ➡️ Blood carries oxygen to all parts of our body.
• ⚡ Oxygen helps our body make energy.

🍎 What are Nutrients?

• 🥕 Explain that nutrients are the good parts of food.
• 😋 We get nutrients when we eat.
• 🩸 Blood picks up nutrients from our stomach and intestines.
• ➡️ Blood carries nutrients to all parts of our body.
• 💪 Nutrients help our body grow and stay healthy.

🤝 How Oxygen and Nutrients Work Together

• ⚡ Explain that oxygen and nutrients work together to give us energy.
• 🌱 Nutrients are like the building blocks, and oxygen helps turn them into energy.
• 🏃 This energy helps us run, play, think, and grow.

✍️ Activity: The Blood Delivery Game

• 📦 Divide the class into groups.
• 🚚 One student is the "blood cell" and carries "oxygen" (small blue paper) and "nutrients" (small colored paper) to different parts of the classroom (representing body parts).
• ⏱️ Time the groups and see who can deliver the oxygen and nutrients the fastest.

✅ Assessment

Ask the following questions to check students' understanding:

• ❓ What does blood carry?
• 🫁 Where does blood pick up oxygen?
• 🍎 Where does blood pick up nutrients?
• 💪 Why are oxygen and nutrients important?

➕ Extension Activity

• 🎨 Have students draw a picture of the human body and label the parts that need oxygen and nutrients.