Fifth graders use an analogy to the mail delivery system to study the workings of the human endocrine system. They discover the interrelationships between the human body systems while comparing them to engineering communicating with...

Students investigate and determine a way to mail raw spaghetti. In small groups, they package their raw spaghetti using various packing materials, mail the package through the postal system, and evaluate their packing design after...

Students discover how a zip code is used. In this zip code lesson, students use the parts of a zip code to find where a letter is going, then find the first number of zip codes based on geographic regions.

Students investigate the challenges of delivering vast amounts of servicemen mail during World War II. In this historical perspectives lesson, students determine how to solve the problem that the postal service faced during the war and...

Students learn how the endocrine system works and compare it to the mail delivery system. Students discuss the importance of communication in human body systems and relate that to engineering and astronauts.