This package contains 11 different main idea sets (each set goes into a numbered plastic lunch baggie). The children search each numbered bag to determine the main idea of the photos. They then list 3 supporting details, which helped them to come to their conclusion. The recording sheet only has 9 rows because my kids usually only get through about that many, if they work really hard! I have used this as an introduction whole group activity, broken down by tables and also as a center for review; both worked very well and the kids love it!