Lesson Plan for Senior Secondary 3 - Technical Drawing - ntroduction To Computer- Parts, Simple Practical

### 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 --- #### 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) --- #### 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. --- #### 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.