R most favourite manipulative medium is pom poms, but is very closely followed by dried beans. I made a mini-sensory tub for him with a couple of aims. Firstly, I gave R a choice of items to hide in the beans...he chose the rockets that we used in our outer space unit. Secondly, I wanted to give R a small container for him to practice keeping the beans in the container. Thridly, he loves playing with the dried beans!
R did such a great job of keeping the beans in the container, despite it being so small!
He stayed with this activity for just under 1/2 an hour. He found all the rockets several times, then he started pushing the beans into the holes in the bottom of the rockets (they are meant to be used as pencil toppers). I didn't mind because I thought it was a great fine motor development activity, that was until I went to pack them away and spend nearly 1/2 an hour getting the beans out of the rockets! :)