He finished high school in Sremski Karlovci, philosophy in Szeged, and mathematics in Pest.
Gerčić left Gymnasium in 1820, and became the educator of the son of Field Marshal Peter Duka von Kadar.
He was the first Serb[3] to hold the position of director of the Karlovci Gymnasium, between the years of 1825 and 1851.
A large number of his manuscripts from Serbian and world history have been preserved in the Archives of the Karlovci Gymnasium, which he failed to complete.
[1] When the Kragujevac Gymnasium was raised to the level of the Lyceum in 1838, Gerčić was offered to be a professor and rector of this educational institution.