I got this amazing idea from Amanda on her blog http://aspecialkindofclass.blogspot.com/
and I can't thank her enough. My kids needed something different to mix it up a little and Amanda inspired me to make this important concept more interesting. Each child got their own baggie of cards and I told them what kind of pattern I wanted them to make (AAB etc. ) Then they had to read their pattern to me. We switched our baggies and I could quickly assess who needed more work on this.