What does it mean to possess Technological Pedagogical Content Knowledge

So, I'm thinking about this theoretical knowledge base called Technological Pedagogical Content Knowledge (TPCK). Here's my question, What does it look like if a teacher not only possesses TPCK but also uses it to ground their teaching. This is a question that we should not only be asking about TPCK but about any form of teaching knowledge.

A possible answer:
If a teacher is using TPCK to ground his/her teaching, I believe that an observer should be able to point to specific things the teacher says, specific assignments the teacher makes, specific ideas he/she writes on the board, specific questions the teacher asks students to consider and identify elements of pedagogy, content and technology. If the teacher is grounding his/her teaching practice in TPCK an observer will be able to say that numerous areas of the teaching are evidence of both pedagogy and content, pedagogy and technology, and content and technology. Indeed many observed elements of the teaching will incorporate pedagogy, technology and content.

Let me provide one example:
A history teacher asks groups of students to collaboratively develop a wiki that provides a comparison of different perspectives on the Boston Massacre. In addition to providing links to original sources that contain different perspectives students must also guides readers in understanding key questions that a historian might ask about these different sources in order to develop a coherent understanding of what took place. Ultimately, students must present their understanding of what occurred at the "Boston Massacre," in which they incorporate ideas from multiple texts. In order to ensure that every student contributes to the final project students will be asked to document their work on a different section of the wiki. All students will be asked to sign off on each students' documentation. In order to facilitate a consideration of the different documents the teacher asks students to respond to the following prompts: 1. Summarize the text in your own words; 2. Does this text place blame on the British, the colonists, or both? Support your answer with evidence from the text; 3. List (1,2,3...) opinions from this text and list (1,2,3...) facts from this text. (Every student within a group must agree on the answers to these questions. In order to allow technology to assist this work, one student will be expected to answer all of the question for one particular text but then the other students will be expected to edit each other's work using the wiki.

This is clearly still a thought in process. I'd appreciate any feedback.