  The Jackiw-Teitelboim model written as a BF theory in two dimensions is
analyzed by using the Dirac's and Faddeev-Jackiw formalism. The analysis
consists in finding the full structure of the constraints, the gauge
transformations, the counting of degrees of freedom and the generalized
Faddeev-Jackiw brackets. The Poincar\'e symmetry and the diffeomorphisms are
found. Further, we show that the Faddeev-Jackiw and Dirac's brackets coincide
to each other.
