The Venn diagram displays three large circles intersecting with one another. The circles are labeled Technological Knowledge marked T K, Pedagogical Knowledge marked P K, and Content Knowledge marked C K. The intersection of the Technological Knowledge and Pedagogical Knowledge circles is labeled Technological Pedagogical Knowledge marked T P K. The intersection of the Technological Knowledge and Content Knowledge circles is labeled Technological Content Knowledge marked T C K. The intersection of the Pedagogical Knowledge and Content Knowledge circles is labeled Pedagogical Content Knowledge marked P C K. The central area where all three circles intersect is labeled Technological Pedagogical Content Knowledge marked T P A C K. The entire diagram is enclosed by a large dashed circle labeled Contexts.The technological pedagogical and content (Context) knowledge model conceptualized by Mishra and Koehler (2006).