Tidal Tales

Ocean Literacy Educational Materials

Exploring Ocean Mysteries is a curriculum that makes it easy to teach the seven Ocean Literacy Principles while meeting NGSS, Common Core and Climate Literacy standards. Lessons are targeted to middle grades and adaptable for grades 4-12. They use the National Marine Sanctuary System as an engaging backdrop that helps students understand their importance for exploration, research, Indigenous cultures and more.


Ocean Literacy Essential Principle 5: The ocean supports a great diversity of life and ecosystems.

In the Tidal Tales: Monitoring Marine Life lesson, students will learn techniques scientists use to measure species abundance in rocky intertidal and subtidal zones in national marine sanctuaries. They will examine photos taken in the two different habitats and identify species, assess organism abundance and compare the depths (zones) from which the photos were taken. Then they will consider the environmental conditions that influence species occurrence and abundance and why it is important to monitor these sensitive habitats.


Lesson Plan

Students will:

  • Visually identify rocky intertidal organisms (primarily mollusks and algae) and subtidal organisms (primarily corals and sponges).
  • Practice data collection methods and complete data sheets using photo quadrats of organisms in rocky intertidal and subtidal zones.
  • Argue from evidence and reflect on the environmental factors that influence species occurrence and abundance in different coastal zones.

Preview of Tidal Tales Lesson Plan

Dive deeper into some rocky intertidal areas and the common species found in these tide pools.​

Preview of Tidal Tales Presentation

Learn how to identify species found in the rocky intertidal of the national marine sanctuaries of the West Coast.

Preview of Rocky Intertidal Identification Cards

​What can observations of marine life tell us over time? Let’s start with photo quadrats for practice!

Preview of Rocky Intertidal Habitat Data Sheet

Explore photo quadrats of the rocky intertidal in Greater Farallones National Marine Sanctuary.

Preview of Rocky Intertidal Photo Quadrat

Download the answer key to check your student’s work.​

Preview of Rocky Intertidal Habitat Answer Key

Explore the colorful subtidal species found in national marine sanctuaries.

Preview of Subtidal Identification Guide

What can observations of marine life tell us over time? Look closely - they can be hard to spot!

Preview of Subtidal Rocky Habitat Data Sheet

Discover unique species in the subtidal habitat.

Preview of Subtidal Photo Quadrats

Download the answer key to check your student’s work.

Preview of Subtidal Habitat Answer Key