### Lesson Plan: Introduction to Computer - Parts, Simple Practical Exercise on AutoCAD for Building and Mechanical Drawing
#### Subject: Technical Drawing
#### Grade: Senior Secondary 3 (SSS3)
#### Duration: 90 minutes
#### Topic: Introduction to Computer - Parts, Simple Practical Exercise on AutoCAD for Building and Mechanical Drawing
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#### Objectives:
1. Identify and describe the basic parts of a computer.
2. Understand the importance of CAD software in technical drawings.
3. Learn the basics of AutoCAD and its interface.
4. Explore simple exercises in AutoCAD related to building and mechanical drawings.
#### Materials Needed:
- Computers with AutoCAD installed
- Projector and screen
- Whiteboard and markers
- Handouts with AutoCAD commands
- Sample drawings (building and mechanical)
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#### Introduction (10 minutes):
- Greet the students and take attendance.
- Begin with a brief discussion of the day's objectives.
- Ask students to share their previous knowledge about computer parts and CAD software.
- Provide an overview of the importance of using CAD software like AutoCAD in the field of technical drawing.
#### Computer Parts Overview (15 minutes):
- Display images and real examples of the following parts of a computer:
- CPU (Central Processing Unit)
- Monitor
- Keyboard
- Mouse
- Storage Devices (e.g., Hard Drives, SSDs)
- Input/Output Ports (e.g., USB, HDMI)
- Explain the function of each part briefly.
- Use a live demonstration (using a real computer or simulation) to show how these parts are assembled and interact.
#### AutoCAD Introduction (15 minutes):
- Introduce AutoCAD and its importance in technical and engineering drawings.
- Showcase examples of building and mechanical drawings made with AutoCAD to highlight its capabilities.
- Open AutoCAD on the projector screen and give a brief tour of the interface, pointing out key features such as:
- Command Line
- Toolbar
- Drawing Area
- Layers
- Navigation tools
#### Practical Exercise on AutoCAD for Building Drawing (25 minutes):
- Distribute handouts with basic AutoCAD commands and shortcuts.
- Guide students through a simple exercise to create a basic floor plan:
- Draw a rectangle representing the outer walls.
- Add interior walls using the Line tool.
- Include doors and windows using predefined blocks or shapes.
- Label the rooms (e.g., living room, bedroom, kitchen).
- Walk around the room to assist students and answer questions.
- Save and review the drawings.
#### Practical Exercise on AutoCAD for Mechanical Drawing (20 minutes):
- Begin with a quick explanation of mechanical drawing basics.
- Lead the class through a step-by-step exercise to create a simple mechanical part:
- Start with drawing a basic 2D shape, such as a circle or rectangle.
- Add detail by using the Fillet, Chamfer, and Offset commands.
- Create holes and cutouts using the Trim and Extend tools.
- Dimension the drawing using the Dimension tool.
- Provide individual support as students work through their drawings.
- Save and review the drawings.
#### Conclusion (5 minutes):
- Recap the day's lesson by reviewing the key points:
- Importance of knowing computer parts.
- Basic navigation and use of AutoCAD.
- Simple drawing exercises for building and mechanical designs.
- Ask students if they have any questions and address them.
- Provide a brief homework assignment: Research additional features of AutoCAD and come prepared to discuss in the next class.
#### Assessment:
- Observe student participation during class discussions.
- Evaluate student progress on the AutoCAD exercises.
- Review the saved drawings to ensure understanding and correct application of commands.
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#### Homework:
- Research and read about advanced features of AutoCAD to prepare for upcoming projects.
- Practice using at least five new AutoCAD commands not covered in today's class.
#### Notes:
- Ensure all computers are functioning and have AutoCAD installed before the class starts.
- Print and distribute handouts in advance.
- Monitor time closely to ensure all sections of the lesson are covered.