What is the Thematic Writing Center EXTENSION RESOURCE Packet (K-2)?The Thematic Writing Center Extension packet includes word cards, story prompt rings, story starter cubes, resource books, nonfiction readers, word lists, write the room activities and writing paper. All of these items are available in all 90 themes. The packet includes 12 word cards per theme for a total of 1,080 cards. This packet can be used in conjunction with my Thematic Writing Center packet or completely stand-alone witho