  A homogeneous space is a manifold on which a Lie group acts transitively.
Super generalization of this concept is also studied in [2] and [4]. In this
paper we explicitly show that super Lie group GL(m|n) acts transitively on
supergrassmannian G_{k|l}(m|n). In this regard, by using functor of point
approach, this action is constructed by gluing local actions.
