The major theme of the cartoons you will find in Cartoons for the Classroom is around the current political and economic events but there are also time-independent cartoons shared by volunteers from all around the globe. The lesson plans that are provided in this website are all available for free download in PDF format.
The site also offers teachers a two-page Cartoon Evaluation Worksheet for use by students in class. This is a good way for you to monitor your students comprehension of the cartoons being used in the classroom. Here is a snapshot of the first page of this worksheet.