
    Design a function for the learning path generator that calculates the total distance around a square-shaped interactive exercise area, given the length of one side measured in learning units. This calculation will help students visualize and understand perimeter concepts through their personalized geometry practice module.
    

    
def square_perimeter(a):
    """
    Design a function for the learning path generator that calculates the total distance around a square-shaped interactive exercise area, given the length of one side measured in learning units. This calculation will help students visualize and understand perimeter concepts through their personalized geometry practice module.
    

    """
def square_perimeter(a):
    """
    Design a function for the learning path generator that calculates the total distance around a square-shaped interactive exercise area, given the length of one side measured in learning units. This calculation will help students visualize and understand perimeter concepts through their personalized geometry practice module.
    

    """
    perimeter = 4 * a
    return perimeter