I used a few printables from 1+1+1=1 blog D is for Dolphins, as well as some free dolphin and whale printables (that go with the toob) found at The Pinay Homeschooler. But other than that there was not much for dolphins in the preschool realm, so I made a few things of my own and you can find them HERE (9 pages).
Here is what is in the boxes! Sorry the pictures are so washed out.
Dolphin and Whale sort – made by me (using the Whales and Dolphins Toob)
Sensory Bin – blue rice, blue and clear flat marbles and some blue aquarium rocks, whales and dolphins, scoops and cups, FREE whale and dolphin info cards. For how to dye rice – click HERE
We are using Unit Studies by Amanda Bennett Dolphin Days as the core for my 7yo, and the littles join in (they like the videos!).