Hecht was appointed second professor of mathematics at the Freiberg Bergakademie in 1816. At first he taught elementary pure and applied mathematics, a course which had been previously given by the first professor at the Freiberg Bergakademie F G von Busse, but later Hecht taught only mechanics and mining machinery. When von Busse retired in 1826 it was a natural promotion for Hecht to assume the first mathematics chair at the Freiberg Bergakademie and this was indeed the position.
Koch writes in  of Hecht's role at the Freiberg Bergakademie:-
Hecht was not a leading figure at the Freiberg Bergakademie, but through his great industry and his strict conscientiousness in carrying out his duties he was of great help to his students. His lectures were designed less for the gifted students than for those who needed extra assistance and an external stimulus in their studies. For this and for his friendly sincere manner Hecht won many friends.He is best known for the high school texts which he wrote. These widely used school texts were on mathematics, geometry and surveying. He understood that the mathematical and engineering skills necessary for those who were to be mining experts came together in mechanics and he developed the course material in this way. His books, written for his students and others who needed the same understanding of mechanics, were popular. For example he published Lehrbuch der Arithmetik und Geometrie , a work in two volumes first published in 1812, 1814, with a second edition being published in 1826. His next text was Tafeln zur Berechnung der Seigerteufen und Sohlen für die Länge der schwachen Schnur (1814) with perhaps his most famous work Erste Gründe der mechanischen Wissenschaften being published in 1819 with a second edition appearing in 1843, ten years after Hecht's death. His later texts covered topics such as quadratic and cubic equations, differential and integral calculus, and arithmetic and geometry.
Article by: J J O'Connor and E F Robertson