This Resource is a lesson designed to continue the AP Physics Topic of Radioactivity, following on with this lesson on Theory of Decay. It contains: A Powerpoint to provide a general lesson structure and explanationsA starter activity recapping half life and decay curvesAn activity featuring a more in depth look at half life and decay constantsA research activity where students look into uses of different kinds of radiation; the internet could be used, or the cards providedI hope you find these