At the beginning and middle of our exploration into patterns, an experience I like to do with my students is find patterns in nature. The students can take a photo of the pattern they have found in nature (for example stones and leaves they have found and placed into a pattern). Then students would use that pattern they have found and recreate the same pattern or sequence in another way, possibly through sound or letters.
Leaf Leaf Stone Leaf Leaf Stone
Could also translate to:
A A B A A B