Washing machine and method of controlling the same

A washing machine, comprising:

• a tub;
• a rotating tub configured to be rotatable in the tub;
• a pulsator configured to be rotatable in a lower portion of the rotating tub;
• a washing rod configured to be coupled to the pulsator;
• a sensor configured to detect coupling or decoupling of the washing rod to the pulsator, and to transmit a detection signal based on the coupling or the decoupling of the washing rod to the pulsator;
• a control panel configured to display a plurality of washing modes;
• and
• a controller configured to be electrically connected to the sensor and the control panel,
• wherein the controller is configured to:
• control the control panel to display at least one washing mode corresponding to a coupled state of the washing rod to the pulsator or a decoupled state of the washing rod to the pulsator among the plurality of washing modes based on the transmitted detection signal from the sensor,
• wherein the controller is configured to:
• detect a weight of laundry accommodated in the rotating tub, based on an input of an execution command of a washing mode executable in the coupled state of the washing rod and the decoupled state of the washing rod from among the at least one washing mode, and
• control the control panel to display first guide information that recommends the decoupling of the washing rod or second guide information that recommends the coupling of the washing rod, based on whether the detected weight of the laundry exceeds a reference level.