McComas, W. F. (2014). Technological pedagogical content knowledge. In W. F. McComas (Ed.), The language of science education: An expanded glossary of key terms and concepts in science teaching and learning (p. 106). SensePublishers.  http://doi.org/10.1007/978-94-6209-497-0

Abstract:

“TPACK is expanded from Shulman’s (1986) work in defined types of teacher knowledge and was first introduced by Mishra and Kohler in 2006. TPACK is the space formed where two of Shulman’s “teacher knowledge” circles overlap.”