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📘 Lesson Plan: Introduction to Object-Oriented Programming (OOP) in Python
🎯 Learning Objectives
By the end of this lesson, students will be able to:
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Understand the core concepts of OOP: Classes, Objects, Encapsulation, Inheritance, Polymorphism, and Abstraction.
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Write Python classes and instantiate objects.
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Use inheritance and method overriding to create reusable and extensible code.
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Apply encapsulation using private variables and getter/setter methods.
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Recognize and apply abstraction using abstract base classes.
🧠 Key Concepts & Examples
1. Classes and Objects
Example:
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2. Encapsulation
Example:
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3. Inheritance
Example:
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4. Polymorphism
Example (method overriding):
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5. Abstraction
Example:
[/fusion_text][fusion_syntax_highlighter theme=”” language=”x-sh” line_numbers=”” line_wrapping=”” copy_to_clipboard=”” copy_to_clipboard_text=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” font_size=”” border_size=”” border_color=”” hue=”” saturation=”” lightness=”” alpha=”” border_style=”” background_color=”” line_number_background_color=”” line_number_text_color=”” margin_top=”50px” margin_right=”” margin_bottom=”50px” margin_left=””]ZnJvbSBhYmMgaW1wb3J0IEFCQywgYWJzdHJhY3RtZXRob2QKCmNsYXNzIFNoYXBlKEFCQyk6CiAgICBAYWJzdHJhY3RtZXRob2QKICAgIGRlZiBkcmF3KHNlbGYpOgogICAgICAgIHBhc3MKCmNsYXNzIENpcmNsZShTaGFwZSk6CiAgICBkZWYgZHJhdyhzZWxmKToKICAgICAgICByZXR1cm4gIkRyYXdpbmcgYSBDaXJjbGUiCgpjbGFzcyBTcXVhcmUoU2hhcGUpOgogICAgZGVmIGRyYXcoc2VsZik6CiAgICAgICAgcmV0dXJuICJEcmF3aW5nIGEgU3F1YXJlIgo=[/fusion_syntax_highlighter][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”” rule_size=”” rule_color=”” hue=”” saturation=”” lightness=”” alpha=”” user_select=”” awb-switch-editor-focus=”” content_alignment_medium=”” content_alignment_small=”” content_alignment=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” class=”” id=”” width_medium=”” width_small=”” width=”” min_width_medium=”” min_width_small=”” min_width=”” max_width_medium=”” max_width_small=”” max_width=”” margin_top=”” margin_right=”” margin_bottom=”” margin_left=”” fusion_font_family_text_font=”” fusion_font_variant_text_font=”” font_size=”” line_height=”” letter_spacing=”” text_transform=”” text_color=”” animation_type=”” animation_direction=”left” animation_color=”” animation_speed=”0.3″ animation_delay=”0″ animation_offset=”” logics=””]
🏁 Assignment
Create a class Person with the following:
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Attributes: name and age
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Method: introduce() that prints:
"Hi, I'm {name} and I'm {age} years old."
Create a subclass Student that:
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Inherits from Person
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Adds an attribute: school
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Overrides introduce() to print:
"Hi, I'm {name}, I'm {age} years old and I study at {school}."
Expected Usage
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✅ Answer Key
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🔁 Recap
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Class & Object: Template and instance.
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Encapsulation: Protect internal state.
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Inheritance: Reuse code from base classes.
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Polymorphism: Different classes share interface but act differently.
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Abstraction: Hide complexity using interfaces or base classes.
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