The following two links are for a Eurythmic Game in the Dalcroze method. This lesson plan is great for very young students.
This link below is for a lesson from http://www.mediasmarts.ca on how music reflects and influences societies. It is suitable for high school students for a supplementary music class or a media literacy class.
The following links are for a lesson on an Orff arrangement of Land of the Silver Birch for elementary students.