## Lesson Plan: Basic Tech for Junior Secondary 3
### Topic: Basic Electronics II
#### Duration: 60 minutes
### Objectives:
By the end of this lesson, students will be able to:
1. Understand and identify basic electronic components.
2. Explain the functions of basic electronic components.
3. Assemble a simple electronic circuit using basic components.
4. Understand safety precautions when working with electronics.
### Materials Needed:
- Whiteboard and markers
- Projector and laptop (for PowerPoint presentation)
- Basic electronic components (resistors, capacitors, diodes, LEDs, transistors, batteries)
- Simple circuit kits or breadboards
- Multimeters
- Safety glasses and gloves
### Procedure:
#### Introduction (10 minutes)
1. **Greeting and Attendance** (2 mins)
- Greet students and take attendance.
2. **Review of Previous Lesson** (3 mins)
- Briefly review Basic Electronics I, focusing on what was learned about electricity, circuits, and conductivity.
3. **Introduction to Today's Topic** (5 mins)
- Introduce the day's topic: Basic Electronics II.
- Explain the importance of understanding basic electronic components for future studies and potential careers in technology and engineering.
#### Instruction (30 minutes)
1. **Presentation on Basic Electronic Components** (15 mins)
- Use a PowerPoint presentation to explain the following components:
- **Resistors:** Define their purpose (to limit current) and show examples.
- **Capacitors:** Explain their function (to store and release electrical energy) and show examples.
- **Diodes:** Clarify their role (to allow current to flow in one direction only) and show examples.
- **LEDs:** Define Light Emitting Diodes and their use in indicating power supply.
- **Transistors:** Explain their role in amplification and switching.
- Show real-life examples and explain how each component is represented in circuit diagrams.
2. **Hands-On Activity: Assembling a Basic Circuit** (15 mins)
- **Demonstration:**
- Gather students around a table to watch the assembly of a simple circuit (e.g., a blinking LED circuit).
- Explain each step while constructing it.
- **Guided Practice:**
- Distribute circuit kits or breadboards and components to students.
- Guide them step-by-step to assemble a basic LED circuit.
- Ensure each student understands the connection and function of each component.
#### Practice/Assessment (15 minutes)
1. **Safety Precautions** (5 mins)
- Discuss safety rules for working with electronics, stressing the importance of wearing safety glasses, checking for correct voltage, and ensuring proper handling of components.
2. **Assessing Understanding: Quiz** (10 mins)
- Conduct a short quiz with questions like:
- What is the function of a resistor?
- How does a capacitor work?
- What is the purpose of a diode in a circuit?
- How do you identify the positive and negative terminals of an LED?
#### Conclusion (5 minutes)
1. **Summary** (3 mins)
- Summarize the key points discussed.
- Reiterate the importance of each component and how they work together in a circuit.
2. **Q&A Session** (2 mins)
- Answer any remaining questions from students.
3. **Preview of Next Lesson** (1 min)
- Provide a brief overview of what will be covered in the next lesson (e.g., more complex circuits, introduction to integrated circuits).
#### Homework
- Assign a short research project: Have students find a simple electronic circuit online and bring the printout to the next class. They should be prepared to explain the purpose of the circuit and the components it includes.
### Additional Notes:
- Ensure that all students are actively participating and provide assistance when needed.
- Monitor students for proper use of equipment and adherence to safety guidelines.
- Adapt the pace of the lesson based on student understanding and engagement.
### Evaluation:
- Participation during the hands-on activity.
- Performance on the quiz.
- Quality and understanding demonstrated in the homework assignment.
By following this lesson plan, students will gain a fundamental understanding of basic electronic components, their functions, and safe handling practices.