First graders listen as the teacher introduces the history of the use of greeting cards to communicate. Students watch as the teacher shows them a vairty of greeting cards They use the linked web site www.dltk-cards.com to create a custom greeting card. Students print their creations and make an envelope to mail it in. Students evaluate the lesson by discussing what they liked and disliked about the lesson. They take a field trip to the Post office to mail their cards and tour the facility.