For 1HOUR social media; found on https://www.commonsense.org/education/top-picks/game-making-tools-for-schools. This is an app, not an activity, so volunteer teachers should plan to give an overview of the app and/or lead activities using the app.
For 1HOUR social media; found on http://gamesforchange.org/studentchallenge/teachers-resources/. This resource provides an introduction to coding and game design. At approximately 2 hours in length, this lesson may need to be modified slightly to fit the one-hour time allotment.