This is the 2393rd most frequent Turkish word.
göstererek
"By showing" or "while showing."
Here, 'göstererek' is used to describe the action of indicating something explicitly with an object (a pen).
Kitapta önemli noktaları kalemle göstererek işaretledim.
I marked the important points in the book, indicating them with a pen.
In this sentence, 'göstererek' is used to imply showing or pointing to something (map) as a means to provide explanation.
Haritayı göstererek bana yol tarif etti.
He explained the directions to me by showing the map.
Here, 'göstererek' is employed to represent the act of displaying information visually as part of an explanation.