Becca Palczynsky December 4, 2013 2013, OAS, GFL, Middle, World Major World Political Systems Becca Palczynsky December 4, 2013 2013, OAS, GFL, Middle, World Click on the image above to download the lesson. Description: The purpose of this lesson is to provide students information on representative governments and authoritarian systems throughout the world. Grade level(s): Middle Standards: OAS, GFL Produced By: Susan Smith