Lesson 1 & 4 Lesson 1- the Gulf of Maine

Lesson 2-Structured Layering of the Ocean

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Lesson 2-Structured Layering of the Ocean

Source: The California Education and Environment Initiative, Unit E.5.d, Ocean Currents and Natural Systems.
Lesson 2-Phytoplankton

Source: NASA, http://earthobservatory.nasa.gov/Experiments/ICE/Channel_Islands/Images/ice_phytoplankton.jpg

Lesson 2- Seasonal Productivity in Surface Waters

Source: The California Education and Environment Initiative, Unit E.5.d, Ocean Currents and Natural Systems.

Optional Lesson 2- Interactive Read Aloud (IRA) Plan

Grades: 6-12 Date: February 16, 2015

Unit/Lesson: The Ocean System IRA Plan Author: Janet MacNeil

Book Title & Author:

Ocean Sunlight: How Tiny Plants Feed the Seas by Molly Bang & Penny Chisholm

Purpose for this book

To illustrate the importance of phytoplankton to all life on Earth and to compare ocean food webs with land food webs

Focus Question(s) for the Interactive Read Aloud

What is the role of phytoplankton in the ocean ecosystem? What do they need to survive?

What will students be doing before and after using this book?

Before reading this book, students will investigate how temperature and salinity affect the density of water and create layers in the ocean. Then they learn how understanding the layers of the ocean helps explain the distribution of organisms that live there. This leads to a discussion about phytoplankton and their role as primary producers.

After reading this book, students will investigate seasonal productivity as related to latitude.

What makes this book worthwhile to share with students?

The book has a clear message, engaging and clear illustrations, and targets the big ideas focused on in the lesson.

Science/Engineering and/or Nature of Science big ideas

Energy from the sun drives photosynthesis on land and in the ocean.
Phytoplankton are primary producers in the ocean food web. They require sunlight, water, carbon dioxide and nutrients for photosynthesis.
Phytoplankton are responsible for half the photosynthesis on Earth.

Interactive Read Aloud Plan Details

Questions to Ask Before Reading:	The title of the book is Ocean Sunlight: How Tiny Plants Feed the Seas. What do you think this book is about? Why? (Turn and talk, then group share)
1^st Stopping Point Page 2	“All ocean life depends on me; so does all life on land.” How do you think all life depends on the sun? (Turn and talk, then group share)
2^nd Stopping Point Page 6	“Everything is connected.” What do you think would happen if there were no Sun? (Group share)
3^rd Stopping Point Page 7	“But where are the ocean’s plants?” (Group share)
4^th Stopping Point Page 11	Project a photo of phytoplankton or show students the illustration in the book. How can we tell that they’re plants? What makes a plant a plant? (Turn and talk, then group share)
5^th Stopping Point Page 14	Take 2 deep breaths…The oxygen in the 1^st breath was from green plants on land, the oxygen in the 2^nd breath was from phytoplankton in the ocean.
6^th Stopping Point Page 15	“Phytoplankton can grow very fast. It has enough light and nutrients, one phytoplankton can grow and become two in just a day or so. It splits into identical twins!” Why do you think they can grow so fast? (Group share)
7^th Stopping Point Page 20	How are grass and phytoplankton alike? (Turn and talk, then group share)
8^th Stopping Point Page 22	“Where do these animals get their food? (Group share)
9^th Stopping Point Page 28	“How can those deep dark waters—rich with nutrients—rise all those miles back up into the light so the phytoplankton can use them once again?” (Group share)
Wrapping Up and Reflecting on the Conversation Page 34	What would happen if the number of phytoplankton decreased significantly? What kinds of factors might influence phytoplankton populations? (Turn and talk, then group share)

Source: Janet MacNeil, http://the-curious-scientist.weebly.com/curriculum.html

Lesson 3- Major Ocean Currents Map

Source: The California Education and Environment Initiative, Unit E.5.d, Ocean Currents and Natural Systems.

Lesson 3- Uneven Heating of Earth Diagram

Source: The California Education and Environment Initiative, Unit E.5.d, Ocean Currents and Natural Systems.

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