
    Calculate the total linear feet of student progress tracking boards needed to line all walls of a square classroom, given the length of one classroom wall in feet. This calculation will determine the complete border coverage required for installing an early warning indicator system that displays real-time student engagement metrics.
    

    
def square_perimeter(a):
    """
    Calculate the total linear feet of student progress tracking boards needed to line all walls of a square classroom, given the length of one classroom wall in feet. This calculation will determine the complete border coverage required for installing an early warning indicator system that displays real-time student engagement metrics.
    

    """
def square_perimeter(a):
    """
    Calculate the total linear feet of student progress tracking boards needed to line all walls of a square classroom, given the length of one classroom wall in feet. This calculation will determine the complete border coverage required for installing an early warning indicator system that displays real-time student engagement metrics.
    

    """
    perimeter = 4 * a
    return perimeter