You can find the printables to this activity here.
Here is a pattern sheet where you figure out the pattern and put the correct colored pom pom at the end.
Here you can make your own color patterns but follow the size patterns. Then at the bottom of this sheet you can follow the counting pattern by putting the correct number of pom poms in the square with the number on it.
You can store this in a gallon zip top bag.
Hope you like this activity.