Mother Goose Time's April curriculum is called "Ocean Commotion". Here are the suggested books to go along with the unit:
Week 1: How does the ocean look under the surface water?
Somewhere in the Ocean by Jennifer Ward and T.J. Marsh
The Ocean Alphabet Book by Jerry Pallotta and Frank Mazzola, Jr.
Moonlight Ocean by Elizabeth Golding
Seaweed Soup by Stuart J. Murphy
Swim Fish!: Explore the Coral Reef by Susan B. Neuman
Week 2: What large creatures live in the ocean?
A Whale of a Tale!: All About Porpoises, Dolphins, and Whales by Bonnie Worth
Octopus's Garden by Ringo Starr
Amazing Dolphins! by Sarah L. Thomson
Hark! A Shark!: All About Sharks by Bonnie Worth
Limu: The Blue Turtle by Kimo Armitage
Week 3:What small creatures live in the ocean?
Floating Jellyfish by Kathleen Martin-James
Sea Star Wishes: Poems from the Coast by Eric Ode
Scholastic Reader Level 1: Seahorses by Nicole Corse
Over in the Ocean: In a Coral Reef by Marianne Berkes
Alpha Tales (Letter X:A Xylophone for X-ray Fish) by Liza Charlesworth
Week 4:What are different ways we can explore the ocean?
Nat. Geo. Little Kids First Big Book of the Ocean by Catherine D. Hughes
Sunken Treasure by Gail Gibbons
Fishing Boat (Turn the Wheel) by Gaby Goldsack
The Berenstain Bears at the Aquarium by Jan Berenstain and Mike Berenstain
Week 1: How does the ocean look under the surface water? - See more at: http://www.mothergoosetime.com/monthly-themes/ocean-commotion/#sthash.CCtKeTO1.dpuf