Update documentation with Phase 3 progress

- Updated PROJECT_CONTEXT.md with Phase 3 implementation status
- Updated README.md with expanded OCR component coverage
- Added Phase 3 lessons to project structure documentation
- Updated learning objectives to reflect current capabilities
- Marked binary search and advanced sorting as implemented
- Marked recursion and file handling as in progress

Author: Alex J Lennon

README.md

@@ -43,17 +43,27 @@ dotnet run
 | ✅ **Implemented** | Component 02 | Programming Fundamentals | Console + Web |
 | ✅ **Implemented** | Component 02 | Data Types & Variables | Console + Web |
 | ✅ **Implemented** | Component 02 | Selection & Iteration | Console + Web |
+| ✅ **Implemented** | Component 02 | Arrays & Collections | Console + Web |
+| ✅ **Implemented** | Component 02 | Object-Oriented Programming | Console + Web |
+| ✅ **Implemented** | Component 02 | Exception Handling | Console + Web |
+| ✅ **Implemented** | Component 02 | Binary Search Algorithm | Console |
+| ✅ **Implemented** | Component 02 | Advanced Sorting (Merge/Quick) | Console |
+| 🚧 **In Progress** | Component 02 | Recursion & File Handling | Console |
 | ✅ **Implemented** | Component 03 | Problem Solving Project | Console + Web |
 | 🚧 **Planned** | Component 01 | Computer Systems | [See Lesson Plan](docs/OCR_LESSON_PLAN.md) |
-| 🚧 **Planned** | Component 02 | Advanced Algorithms | [See Lesson Plan](docs/OCR_LESSON_PLAN.md) |
 | 🚧 **Planned** | Component 03 | Full NEA Project | [See Lesson Plan](docs/OCR_LESSON_PLAN.md) |
 
 ### Current Learning Objectives (Implemented)
 - ✅ Master C# program structure and syntax
 - ✅ Implement variables and data types correctly
 - ✅ Use selection and iteration constructs effectively
+- ✅ Work with arrays and advanced collections (List, Stack, Queue, Dictionary)
+- ✅ Apply object-oriented programming principles (classes, inheritance, polymorphism)
+- ✅ Implement exception handling and input validation
+- ✅ Understand and implement search algorithms (linear, binary)
+- ✅ Implement advanced sorting algorithms (bubble, merge, quick sort)
 - ✅ Apply problem-solving strategies algorithmically
-- ✅ Complete basic programming tasks
+- ✅ Complete programming assessment tasks
 
 ### Planned Learning Objectives ([Full Plan](docs/OCR_LESSON_PLAN.md))
 - 🚧 Understand computer systems architecture

docs/PROJECT_CONTEXT.md

@@ -25,11 +25,13 @@
 - **Exception Handling**: Try-catch blocks, validation, error management
 - **Advanced OOP**: Abstract classes, interfaces, method overriding
 
-#### **Phase 3 (Planned)** 🚧
-- **Computer Systems**: Hardware concepts, software development methodologies
-- **Advanced Algorithms**: Binary search, merge sort, graph algorithms
-- **Database Integration**: SQL, Entity Framework, data persistence
-- **Project Development**: Complete NEA project implementation
+#### **Phase 3 (In Progress)** 🚧
+- **Advanced Algorithms**: Binary search ✅, merge sort ✅, quick sort ✅, recursion 🚧
+- **File Handling**: File I/O, data persistence 🚧
+- **LINQ**: Functional programming concepts 🚧
+- **Computer Systems**: Hardware concepts, software development methodologies 🚧
+- **Database Integration**: SQL, Entity Framework, data persistence 🚧
+- **Project Development**: Complete NEA project implementation 🚧
 
 ### Learning Outcomes
 Students will master:
@@ -53,7 +55,12 @@ OCR-CSharp-Tutorial/
 │   │   ├── 📁 Lesson05-Collections/    # Collections (List, Stack, Queue) ✨ NEW
 │   │   ├── 📁 Lesson06-OOP-Basics/     # Object-oriented programming ✨ NEW
 │   │   ├── 📁 Lesson07-OOP-Advanced/   # Inheritance, polymorphism ✨ NEW
-│   │   └── 📁 Lesson08-ExceptionHandling/ # Error handling ✨ NEW
+│   │   ├── 📁 Lesson08-ExceptionHandling/ # Error handling ✨ NEW
+│   │   ├── 📁 Lesson09-BinarySearch/   # Binary search algorithm ✨ PHASE 3
+│   │   ├── 📁 Lesson10-AdvancedSorting/ # Merge sort, quick sort ✨ PHASE 3
+│   │   ├── 📁 Lesson11-Recursion/      # Recursive algorithms 🚧 PHASE 3
+│   │   ├── 📁 Lesson12-FileHandling/   # File I/O operations 🚧 PHASE 3
+│   │   └── 📁 Lesson13-LINQ/           # LINQ and functional programming 🚧 PHASE 3
 │   └── 📁 web-tutorial/                # Interactive web version
 │       ├── 📄 README.md                # Web tutorial documentation
 │       └── 📁 CSharpTutorial/          # Blazor WebAssembly project