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.
hair gel, food coloring, glitter - my kids LOVE these! Make sure you put tape or something over the zipper side of the bag! We had problems with leaking after they were played with for a while. :) Hair gel and food coloring