  In this paper we give an elementary treatment of the dynamics of skew tent
maps. We divide the two-parameter space into six regions. Two of these regions
are further subdivided into infinitely many regions. All of the regions are
given explicitly. We find the attractor in each subregion, determine whether
the attractor is a periodic orbit or is chaotic, and also determine the
asymptotic fate of every point. We find that when the attractor is chaotic, it
is either a single interval or the disjoint union of a finite number of
intervals; when it is a periodic orbit, all periods are possible. Sometimes,
besides the attractor, there exists an invariant chaotic Cantor set.
