### Lesson Plan: Technical Drawing for Senior Secondary 2
#### Topic: Construction Details (Roofs, Doors, Windows, Staircases, Frames, Lining and Architraves, Floors)
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#### **Lesson Overview:**
**Grade Level:** Senior Secondary 2
**Subject:** Technical Drawing
**Duration:** 90 minutes
**Objective:** Students will understand and be able to draw construction details for roofs, doors, windows, staircases, frames, lining and architraves, and floors.
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#### **Materials Needed:**
- Drawing boards and T-squares
- Set squares
- Protractors
- Compasses
- Drafting pencils (various grades)
- Erasers
- Rulers
- A3 drawing sheets
- Computers with CAD software (optional)
- Projector for demonstrations
- Handouts with sample drawings
- Reference textbooks on construction details
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#### **Lesson Outline:**
1. **Introduction (10 minutes)**
- Welcome and attendance.
- Brief overview of the importance of construction details in technical drawing.
- Presenting the objectives of the lesson.
2. **Demo and Discussion (10 minutes)**
- Show detailed examples of construction details using a projector.
- Discuss the significance of accuracy and clarity in technical drawings.
- Explain the types of construction details to be covered: roofs, doors, windows, staircases, frames, lining and architraves, and floors.
3. **Drawing Basics Refresher (10 minutes)**
- Quick refresher on basic drawing techniques.
- Emphasis on tools and their use.
4. **Section 1: Roofs (15 minutes)**
- Types of roofs: gable, hip, flat, etc.
- Demonstrate drawing a gable roof detail.
- Students practice drawing their own roof detail.
5. **Section 2: Doors and Windows (15 minutes)**
- Standard dimensions and types of doors and windows.
- Demonstrate a detailed drawing of a door and a window frame.
- Students practice drawing their own door and window details.
6. **Section 3: Staircases (10 minutes)**
- Key components: treads, risers, stringers, handrails.
- Demonstrate a detailed drawing of a staircase.
- Students practice drawing their own staircase detail.
7. **Section 4: Frames, Lining, and Architraves (10 minutes)**
- Definitions and applications in construction.
- Demonstrate detailed drawings of frames, lining, and architraves.
- Students practice drawing these details.
8. **Section 5: Floors (10 minutes)**
- Different types of floor construction (suspended floor systems, slab on grade).
- Demonstrate drawing a cross section of a floor.
- Students practice drawing their own floor detail.
9. **Wrap-up (5 minutes)**
- Review key points covered in the lesson.
- Answer any remaining questions.
10. **Assignment and Closing (5 minutes)**
- Assign homework: Draw detailed sections of the topics covered in class, using the provided handouts and examples as a guide.
- Inform students about the next class and what will be covered.
- Collect finished drawings (if needed) and dismiss the class.
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#### **Assessment:**
- **Formative Assessment**: Observe students as they work, offering guidance and feedback during their drawing practice.
- **Summative Assessment**: Evaluate the homework assignment on accuracy, clarity, and completeness of the construction detail drawings.
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#### **Optional:**
- Use CAD software to show how these construction details can be drawn digitally.
- Supplement the lesson with real-world examples or site visits to see these construction details in practice.
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#### **Follow-Up:**
- Review student drawings in the next class.
- Discuss common mistakes and how to correct them.
- Prepare students for more complex projects involving multiple construction details in future lessons.
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This lesson plan provides a structured approach to teaching Senior Secondary 2 students the essential aspects of drawing construction details, ensuring they gain practical skills and a deeper understanding of technical drawing in construction.