### Lesson Plan for Primary 3: Basic Science and Technology
**Theme**: Introduction to Science and Technology Concepts
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#### Lesson 1: Measurement of Mass
**Objective**: Students will understand the basic concept of mass and learn how to measure mass using simple tools.
**Materials**:
- Different objects (e.g., eraser, apple, book)
- Balance scales
- Standard weights
- Worksheets
**Introduction** (10 minutes):
1. Start with a simple question: "What do you think mass means?"
2. Explain mass as the amount of matter in an object and it's different from weight.
3. Show students different objects and ask them to compare which they think are heavier or lighter.
**Activity 1** (15 minutes):
1. Introduce balance scales and standard weights.
2. Demonstrate how to use a balance scale to measure the mass of different objects.
3. Hand out balance scales and objects to small groups.
4. Allow students to measure and record the mass of each object in their worksheets.
**Activity 2** (10 minutes):
1. Have pairs of students exchange their objects and worksheets to practice with different items.
2. Discuss any discrepancies in measurements and clarify any misunderstandings.
**Conclusion** (5 minutes):
1. Recap the lesson, emphasizing the importance of mass in everyday life.
2. Answer any questions students might have.
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#### Lesson 2: Generational Development of Computers
**Objective**: Students will learn about the various generations of computers and how technology has evolved over time.
**Materials**:
- Pictures of different generations of computers
- Chart showing timeline
- Excerpts of old and new computer capabilities
**Introduction** (10 minutes):
1. Start with a question: "Who has a computer at home? What do you use it for?"
2. Explain the concept of a computer and its importance.
3. Show images of old and new computers side by side.
**Activity 1** (15 minutes):
1. Explain the different generations of computers:
- First Generation: Vacuum tubes
- Second Generation: Transistors
- Third Generation: Integrated Circuits
- Fourth Generation: Microprocessors
- Fifth Generation: Artificial Intelligence and Modern Computers
2. Use the timeline chart to illustrate the development from one generation to another.
**Activity 2** (10 minutes):
1. Divide students into groups and assign each group a computer generation.
2. Allow each group to create a small presentation (a drawing or a short skit) illustrating their assigned generation.
**Conclusion** (5 minutes):
1. Each group presents their work.
2. Summarize the key points about how computers have changed over time.
3. Encourage students to think about what the future might hold for computers.
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#### Lesson 3: Movement
**Objective**: Students will explore and understand the different types of movement and how objects or living things move.
**Materials**:
- Simple toys (e.g., toy cars, balls)
- Pictures or short videos illustrating different types of movement
- Open space for demonstrations
**Introduction** (10 minutes):
1. Ask a basic question: "Can you show me how you move?"
2. Discuss different types of movement (e.g., walking, running, jumping).
3. Show toys and explain the concept of movement in objects.
**Activity 1** (15 minutes):
1. Demonstrate different movements with toys (rolling, sliding, bouncing).
2. Let students play with toys to observe and describe the type of movement.
3. Use pictures or videos to show movement in animals (e.g., birds flying, fish swimming).
**Activity 2** (10 minutes):
1. Interactive movement game: Call out different verbs (e.g., hop, crawl, roll) and have students mimic the actions.
2. Discuss how the same action can look different in humans, animals, and objects.
**Conclusion** (5 minutes):
1. Recap the different types of movement.
2. Discuss why understanding movement is important in science and technology.
3. Encourage students to observe the different ways things move at home or outside.
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#### Overall Conclusion
1. Recap key points from all three lessons.
2. Engage students in a discussion about how these concepts are interconnected (e.g., technology aids in measuring mass, computers and robots mimic movements, etc.)
3. Answer any remaining questions and assign a small homework task related to the day’s lessons, such as observing the mass of objects at home, identifying different types of computers, or noting movements in their surroundings.
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This lesson plan ensures students learn fundamental concepts in a structured, engaging, and hands-on manner.