🌐 Interactive Web Tutorial: Core Lessons Complete

✨ MAJOR ENHANCEMENT: Real Interactive Learning
• Monaco Editor integration with live C# code execution
• Students can edit, run, and see results immediately
• No more fake buttons - real programming experience!

📚 NEW INTERACTIVE WEB LESSONS:
• Lesson 4: Arrays & Data Structures
  - Array creation, manipulation, and analysis
  - Linear search algorithm with step-by-step execution
  - Bubble sort with visual feedback
  - 2D arrays and matrices

• Lesson 5: Collections & Advanced Data Structures
  - List<T> dynamic arrays with real-time resizing
  - Stack<T> LIFO operations (browser history simulation)
  - Queue<T> FIFO operations (print job simulation)
  - Dictionary<TKey,TValue> fast lookups (grade book)
  - HashSet<T> unique elements (word counter)

• Lesson 6: Object-Oriented Programming Basics
  - Class creation and object instantiation
  - Encapsulation with bank account security
  - Properties and methods with car simulation
  - Static vs instance members demonstration

🏛️ HISTORICAL CONTEXT INTEGRATED:
• Why arrays start at index 0 (1960s optimization)
• Stack/Queue origins (cafeteria plates, shop lines)
• Dictionary evolution from 1953 hash tables
• OOP invention to solve 1960s code chaos

🎯 EDUCATIONAL FEATURES:
• Step-by-step algorithm walkthroughs
• Real-world analogies and examples
• OCR A-Level specification alignment
• Interactive code modification and execution
• Comprehensive comparison tables
• Progressive complexity building

�� TECHNICAL IMPROVEMENTS:
• Updated navigation menu for all lessons
• Consistent Monaco Editor integration
• Responsive Bootstrap 5 design
• Build verification for all components
• Proper component namespacing

Students can now learn by DOING, not just reading!

Author: Alex J Lennon

src/web-tutorial/CSharpTutorial/Layout/NavMenu.razor

@@ -29,6 +29,31 @@
                 <span class="bi bi-3-circle-nav-menu" aria-hidden="true"></span> Lesson 3: Control Flow
             </NavLink>
         </div>
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="lesson4">
+                <span class="bi bi-4-circle-nav-menu" aria-hidden="true"></span> Lesson 4: Arrays
+            </NavLink>
+        </div>
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="lesson5">
+                <span class="bi bi-5-circle-nav-menu" aria-hidden="true"></span> Lesson 5: Collections
+            </NavLink>
+        </div>
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="lesson6">
+                <span class="bi bi-6-circle-nav-menu" aria-hidden="true"></span> Lesson 6: OOP Basics
+            </NavLink>
+        </div>
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="lesson7">
+                <span class="bi bi-7-circle-nav-menu" aria-hidden="true"></span> Lesson 7: OOP Advanced
+            </NavLink>
+        </div>
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="lesson8">
+                <span class="bi bi-8-circle-nav-menu" aria-hidden="true"></span> Lesson 8: Exceptions
+            </NavLink>
+        </div>
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="game">
                 <span class="bi bi-controller-nav-menu" aria-hidden="true"></span> Number Game