The kids will love this colorful math work for number recognition. The Elementary Math Maniac: Quick and Fun Math Practice for Little Kids. Another cute way to show number recolonization and one to one correspondence.
Attendance as they walk in! A quick get to know you/math (counting and graphing) activity. Later in the year students can generate the questions and write them. Place on light colored paper, laminate, and questions can be added with white board marker.
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.