
    Design a function for the learning platform that calculates the total length of the boundary students must trace in a square-shaped interactive geometry module, given the length of one side of the square. The calculated boundary length will help track student progress in understanding perimeter concepts through digital manipulation.
    

    
def square_perimeter(a):
    """
    Design a function for the learning platform that calculates the total length of the boundary students must trace in a square-shaped interactive geometry module, given the length of one side of the square. The calculated boundary length will help track student progress in understanding perimeter concepts through digital manipulation.
    

    """
def square_perimeter(a):
    """
    Design a function for the learning platform that calculates the total length of the boundary students must trace in a square-shaped interactive geometry module, given the length of one side of the square. The calculated boundary length will help track student progress in understanding perimeter concepts through digital manipulation.
    

    """
    perimeter = 4 * a
    return perimeter