Rycik, J. A. (2015). 21stcenury skills in secondary schools. American Secondary Education, 43(2), 2-3.
Rycik identifies and spells out a brief summation of the skills needed in the 21st century. He lists a set of earning areas and then summarizes what is being done in research in these areas.
This article is short and sweet—and very informative. Published in 2015, it is right on the leading edge of pedagogical theory.