The document summarizes a lesson taught by the author to 2nd grade students about endangered species. The lesson taught students about cause and effect, focusing on the causes that lead animals to become endangered. To assess student comprehension, the author created a PowerPoint presentation with pictures of endangered animals and blanks to write the cause of their endangerment. Students worked in groups to identify causes for each animal and shared their answers with the class. The author reflected that the visual assessment kept students engaged, though it was difficult to bring their attention back together as a class.