# Lesson Plan: Basic Science and Technology
## Topic: Water - Objects that Sink in Water, Shutting Down the Computer
### Grade Level: Primary 2
### Duration: 60 minutes
---
### Objectives:
1. Students will understand the concept of objects that sink in water.
2. Students will identify and differentiate between objects that sink and those that float.
3. Students will learn the importance of properly shutting down a computer.
4. Students will demonstrate how to shut down a computer safely.
### Materials Needed:
- A clear bowl or container filled with water
- Various small objects (e.g., plastic ball, metal spoon, wooden stick, rubber eraser, stone, leaf)
- Computer (for demonstration)
- Visual aids (pictures or chart showing the steps to shut down a computer)
- Worksheets
- Whiteboard and markers
### Lesson Steps:
#### Introduction (10 minutes)
1. **Greeting and Settle Down (2 minutes)**
- Greet the students and have them settle down.
- Briefly explain the day's lesson.
2. **Icebreaker Question (3 minutes)**
- Ask: "Have you ever wondered why some things float in water while others sink?"
3. **Objective Overview (5 minutes)**
- Explain that they will learn about objects that sink in water and how to shut down a computer properly.
#### Activity 1: Objects that Sink in Water (20 minutes)
1. **Hypothesis (5 minutes)**
- Show the students the various objects.
- Ask them to predict which objects will sink and which will float.
- Record their predictions on the whiteboard.
2. **Experiment (10 minutes)**
- In small groups, have students take turns placing each object in the bowl of water.
- Observe which objects sink and which float.
- Discuss their observations and compare with their predictions.
3. **Conclusion and Discussion (5 minutes)**
- Explain why some objects sink and why some float (e.g., density).
- Encourage students to share their thoughts on what they learned.
#### Activity 2: Shutting Down the Computer (20 minutes)
1. **Introduction to Computer Shutdown (5 minutes)**
- Explain the importance of shutting down the computer properly (e.g., to avoid data loss, maintain the computer's health).
2. **Step-by-Step Demonstration (10 minutes)**
- Use a computer to demonstrate the process:
1. Save all open work.
2. Click on the Start menu.
3. Select the Shutdown option.
- Use visual aids to reinforce each step.
3. **Practice (5 minutes)**
- Allow a few students to come forward and practice shutting down the computer following the steps demonstrated.
#### Wrap-Up and Evaluation (10 minutes)
1. **Review Key Points (5 minutes)**
- Review why some objects sink.
- Recap the steps to shut down a computer.
2. **Q&A Session (3 minutes)**
- Encourage students to ask questions or share what they found the most interesting.
3. **Worksheet Activity (2 minutes)**
- Distribute worksheets that include a simple matching game for float/sink and a sequence for shutting down a computer.
- Explain that these can be completed at home or during free time in class.
### Homework:
- Ask students to find 3-5 small objects at home and predict if they will sink or float. Test their predictions with the help of a guardian and record the results in their science journal.
- Practice shutting down their home computer or ask parents to supervise their practice.
### Assessment:
- Observe students’ participation during the water experiment and computer shutdown practice.
- Review the completed worksheets to assess their understanding.
---
### Additional Notes:
- Ensure all students have a chance to participate in the hands-on activities.
- Adjust the pace according to the class's understanding and engagement.
---
With this lesson plan, you can provide a balanced mix of theoretical and practical knowledge, ensuring students grasp key scientific concepts while also learning essential technological skills.