Computer Science - Object-Oriented Programming - Inheritance - Family Tree of Vehicles
Show a hierarchy: Vehicle (top) → Car, Truck, Motorcycle (middle) → SportsCar, SUV, PickupTruck, Scooter (bottom). Students drag attributes/methods to the correct level: 'has wheels' → Vehicle (all have it). 'num_doors' → Car (trucks/motorcycles different). 'cargo_capacity' → Truck. 'top_speed_mph'