I need ideas of activities to do at the sensory table in a preschool room my theme is counting can u help?

Ah! Fun! The nice thing is that you can incorporate counting with pretty much any sensory table. I like to provide containers with numerals on them and it encourages them to place that many items in each container. Listen and count. Provide shallow containers and encourage the children to work in pairs..one with their eyes closed and one "dropper". The dropper starts dropping the materials 1 at a time into the container and the other child is silently counting what they hear. This works best to be introduced as a small group first and then place the containers and material into the sensory table. Sorting and counting often go hand in hand. I've place different colors or different types of sensory materials into the table and containers to correspond for them to sort. Then we count how many of each type or how many of each color there are. Pom poms and corresponding colored containers is an easy one. Add tweezers and mini tongs to add in a bit more fine motor. I've also done counting bears and their colored cups mixed in colorful rice. I've also done colored water and eye droppers with containers of different sizes. I ask, how many eyedropperfuls water do you think it will take to fill this container? How about this one? I've also placed contact paper sticky side up and created a chart with foam numbers and yarn. I put colorful foam shapes inside of a sensory table (colored rice, sand, beans, etc). Children then place the foam shapes as they find them onto the chart. 1 at the 1st column, 2 at the 2nd column and etc. I've used formula scoops and cornmeal and we counted how many scoops that we put into containers. Use wide neck and narrow neck and having some funnels available teaches a bit of problem solving also. Hope you find something that works for you!