In this proposal, I want to explore free digital tools that we can use in the classrooms (schools, undergraduate, graduate). We all know examples, so I think of this possible session as a way for all of us to interact. The idea is for all of us to take 5 minutes to present one free tool and to explain how we have used it, how we have evaluated the work of students. I can present 3 tools. The Clio, a mapping system, that I have used to make my student work on the history of beer and prohibition in Fort Collins. I can also present Poll Everywhere, a free alternative to I-Clicker. If interested, I can present omeka (assets and limits) to create virtual exhibit.