Exploring all things dinosaurs seems to be most pre-K kids favorite learning theme. That is why the No Non-cents Nanna includes Dinosaurs in her Sensory Play Box Heart Felt Play Store Collections. See the Pinterest Board: Sensory Activites Paying Attention and Dino Dig on Pinterest.
This Dinosaur Sensory Play Box has Frog Moss, plastic trees and rocks. It also has dinosaur notepads for drawing anthing the kids want. Currently priced for only $10, but, are SOLD OUT!