Choose a learning standard for your lesson plan to fall under. Most states have their own educational requirements for students of each grade level. They might include standards on chronological reasoning, historical research or drawing comparisons. You can pick any of these to build your lesson plan around.
Begin your lesson plan with an introduction about the Red Cross. Give a quick presentation about Red Cross history and hand out a passage describing the organization. Check the Red Cross website for introductory information.
Decide what kind of activity your students will complete. If you want your students research the Red Cross, provide a list of topics to choose from. For example, you might include major events in Red Cross history and important members of the organization.
Include a portion of the lesson plan in which you relate the Red Cross's actions to another lesson your class has already learned. In American History classes, you could find more information about how the Red Cross helped westerners during the Dust Bowl.
Consider having students present their work to each other. This might work best if you have the students work in small groups.