Patterning is a very important math skill for preschoolers. While some children achieve mastery of patterning ver quickly and effortlessly, others struggle and it can takes months before they get the "hang of it ". this is why i always look for different games to provide my students with plenty of patterning practice all year long.
At the moment, we are using coloured bears with laminated sheets. I bought the exercises in a local shop and laminated them myself. At first, the children showed no interest whatsoever in the activity. And then all of sudden, it became very popular as they love playing 2 by 2 and go through as many sheets as possible. They even help and correct each other which is also a great teaching moment and opportunity and which enhances their sense of self esteem!