In today's lesson we learned that PK is Pedagogical knowledge, CK is Content Knowledge, and TK is Technological Knowledge. When you combine the whole package it is TPACK which is Technological, Pedagogical and Content Knowledge. When you combine all of those, you are able to teach the kids in an all-encompassing way. Most teachers are really good at their CK and PK, but have a hard time with TK. There are many things that you can do to use TK that will enhance the lessons and the children's learning. The optimal teaching option is TPACK.
We also learned how to use Stelarium. It is a free resource to document and show what the sky is like in different parts of the world. You can also use it to teach constellations and patterns of the planets, moon, and sun.