This is what I did- first i created 21 places/stuffed animals for the kids to "visit" on their search. In addition there was a starting code on their table(me holding the speech bubble with the QR code in it) and an ending code on their gingerbread man. I wrote a script for each code. Each table scanned 5 codes, so that was 35 script items. I used http://vocaroo.com to record the audio because it has a "save as QR code" option. Super easy to use! I used a google doc to save all the codes in one place. I labeled the codes, which comes in handy when kids get "lost". I tell them to make sure they are only scanning codes with their table number - this was really helpful for 2nd & 3rd grades. Then I cut and mounted the codes on construction paper, and hung them around the room. I also had my 5th grade shelf elves make foam gingerbread guys.I read "Gingerbread Man Loose in the School". Then I told the kiddos that 7(1 for each table group) gingerbread men were lost/loose in the library. They used the iPads to scan the codes to find the gingerbread guys (that were hiding under the crayon baskets all along). They started with a code on the table, went to 3 locations and back to their table. The hunt lasted about 7-10 minutes. I borrowed 5th & 4th graders to help kindergarten. (Huge help!!!) It was like MAGIC with the little ones..."how did he get there??" Prep time was about 3-5 hours, but that is for 22 classes. It has been so much fun...can't wait to create something for 4-5 with the Bluestem Award Books.