If you have not discovered Fran's absolutely AMAZING math tub post yet, then you need to check it out NOW!! Go to her post at Kindergarten Crayons Chapter #4... Now Let's Explore! Freebies Galore!! post.
Fran has broken down chapter 4 of Debbie Diller's math tubs book. She gives lots of great ideas for your number workstation and has GREAT downloads for you!! For FREE!!