**Lesson Plan: Technical Drawing – Pictorial Views**
**Grade Level:** Senior Secondary 2
**Subject:** Technical Drawing
**Topic:** Pictorial Views
**Duration:** 60 minutes
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### **Objectives:**
By the end of the lesson, students should be able to:
1. Define pictorial views.
2. Differentiate between various types of pictorial views.
3. Create isometric, oblique, and perspective drawings.
4. Analyze and interpret simple objects in pictorial views.
### **Materials Needed:**
- Drawing sheets
- Pencils (HB, 2H)
- Erasers
- Rulers
- Set squares
- T-squares
- Protractors
- Compass
- Projection models or 3D objects
- Example drawings
### **Lesson Outline:**
#### **Introduction (10 minutes)**
1. **Set Induction:**
- Show students a few pictorial drawings of common objects (e.g., a chair, a house).
- Ask students to describe what they see and encourage them to discuss how these drawings differ from flat, 2D technical drawings.
2. **Lesson Overview:**
- Explain that pictorial views represent objects more realistically as they appear to the human eyes and are crucial for both readability and comprehensibility in technical drawings.
#### **Explanation/Presentation (20 minutes)**
1. **Define Pictorial Views:**
- Pictorial views represent three dimensions in a single view: height, width, and depth.
2. **Types of Pictorial Views:**
- **Isometric View:**
- Explain that isometric drawings distort the objects slightly but maintain scale. The axes are spaced 120° apart.
- Demonstrate using a model or projector.
- **Oblique View:**
- Explain that oblique drawings have the front face of the object true-scale and perpendicular edges projected at an angle (commonly 45°).
- **Perspective View:**
- Explain that perspective drawings depict objects as they appear to the eye, with a vanishing point.
- Highlight the use of linear perspective to give a sense of depth.
3. **Visual Aids:**
- Use charts or slides to show differences between isometric, oblique, and perspective drawings.
- Display real objects and their corresponding pictorial drawings.
#### **Guided Practice (10 minutes)**
1. **Drawing Isometric Views:**
- Guide students through the steps of creating an isometric drawing of a simple object (e.g., a cube).
- Assist as they draw, checking for correct angles and dimensions.
2. **Drawing Oblique Views:**
- Guide students through creating an oblique drawing of another simple object.
- Provide tips on maintaining proportions and angles.
3. **Drawing Perspective Views:**
- Guide students through the basics of creating a one-point perspective drawing.
- Discuss the importance of vanishing points and horizon lines.
#### **Independent Practice (15 minutes)**
1. **Practice Drawing:**
- Assign students to select one out of three objects placed in the classroom and draw it in one type of pictorial view (isometric, oblique, or perspective).
- Circulate and provide individual assistance as needed.
#### **Review and Assessment (5 minutes)**
1. **Review Key Points:**
- Summarize the types of pictorial views and their main characteristics.
- Recap the steps involved in drawing each type.
2. **Assessment:**
- Collect students’ drawings for evaluation.
- Provide immediate, constructive feedback on their efforts.
### **Homework:**
- Assign students to select an object from home and draw it in all three pictorial views discussed.
### **Closure:**
- Reflect on the importance of pictorial views in technical drawing.
- Encourage students to practice regularly to improve their drawing skills.
- Announce that the next lesson will cover more advanced aspects of pictorial drawing.
**Note**: Adapt the duration and complexity according to your class's ability and needs. This will ensure that all students grasp the fundamental concepts effectively.