Great fine motor activity that also works on number recognition and matching. Instead of numbers you could also write letter on the sticks and box. And you could math problems on the sticks with answers on the box.
KELS MK & Toddler & Preschool - This shape sorting game is excellent for shape recognition. It can also be done with number, shapes, etc. Simple and different. Easy to make RIOA appropriate. Just another way to sort.
Instead of numbers write the color word on the bottles. Sort pom-poms by color. Empty each bottle and count the pom-poms. Then record how many pom-poms were in each bottle. Add the two colors together for addition practice.