The link I have attached is a simple way a teacher can take images and allow their students to explore and study them in a free and safe thinking environment. One thing I found particularly helpful in my link was the open ended questions they included to help teachers that are integrating VTS for the first time. Already I am thinking of ways to include this concept in the social studies unit I am teaching right now.
I love how this website helps implement VTS for those who have never used it before like myself. That is great that it is already giving you ideas of how you can incorporate this style of teaching into the lessons you are currently already teaching.