This is the 10041st most frequent Turkish word.
bakıyordu
"Bakıyordu" means "was looking" or "was watching" in English.
In this case, 'bakıyordu' indicates the child's action of visually observing the pen in the past.
Çocuk, masaya düşen kaleme bakıyordu.
The child was gazing at the pen that fell onto the table.
In this sentence, 'bakıyordu' is used in its progressive past tense form to describe the action of looking being performed by the cat in the past.
Kedi, pencereden dışarı bakıyordu.
The cat was looking outside through the window.
Here, 'bakıyordu' refers metaphorically to the act of recalling or reflecting mentally on past events.