Archaeo-Tech: Mollusk ID & Coloring Activity
Students learn about mollusks, their characteristics and habitats, and how their shells provide clues to the diet of ancient hunter-gatherers who lived on the South Carolina coast thousands of years ago. By studying archaeological finds like shell rings, we can gain insight into these past cultures and their connection to their environment.
Lesson Created By: MegGaillard
Lesson Partners: South Carolina Department of Natural Resources
Essential Question
How can the analysis of mollusk shells from archaeological sites, like shell rings, reveal information about the diet, tools, and culture of the people who lived there thousands of years ago?
Grade(s):
- 3
- 6
Subject(s):
Recommended Technology:
Other Instructional Materials or Notes:
Lesson Progression
1. Ask your students to raise their hand if they have been to the beach before. Did they see any seashells when they were at the beach? Ask them to describe the shells they saw.
2. Explain to your students that seashells are the exoskeletons of a group of animals called mollusks. Mollusks are grouped into different classes depending on the characteristics of their shell, but some mollusks do not have a shell.
3. Go over the basic characteristics, anatomy, and classification of mollusks. Discuss the varied diets and habitats of mollusks. Show images of different mollusk species. The content of this lesson can vary depending on the grade level and applicable academic standards.
4. Have your students give examples of mollusks that live in South Carolina and describe their habitats. Ask your students if any of them have eaten mollusk before. Did they eat oysters at an oyster roast or fried clams at a seafood restaurant? Encourage those that have to share their experiences with the class.
5. Tell your students that mollusks were also a popular food source for Native Americans living on South Carolina’s coast thousands of years ago.
a. Explain that before the domestication of plants and animals, humans had to forage or hunt all the food they consumed. We call the people that practice this kind of subsistence “hunter-gatherers”.
b. For hunter-gatherers living on the ancient coast of South Carolina, the oyster was an abundant and easily obtainable source of food. The brackish water of the salt marshes and estuaries was an ideal habitat and the oyster thrived in these conditions.
c. Evidence of ancient hunter-gatherers exploiting the abundance of oyster and other mollusks is shown by the presence of shell rings along the South Carolina, Georgia, and Florida coasts.
d. Explain to your students what shell rings are, how old they are, what they are made of, and how shell rings are being studied by archaeologists today. A key point is that shell rings can give us insight into the diets of people that lived thousands of years ago.
6. Distribute the “Mollusk Identification” handout (linked in the resources tab). Explain that all the mollusks in this handout were found at the shell ring on Pockoy Island.
7. Pass out coloring utensils (crayons, colored pencils, markers, etc.).
8. Guide your students through the handout and have your students fill out the information for each section.
a. Students should use the words in the Word Bank to complete the description for each shell. Students can help each other find the right answers if necessary. Have your students color the drawings of each shell using the provided coloring utensils.
b. Discuss with your class what archaeologists observed about these shells while excavating at Pockoy. This information is included on the handout. Have your students brainstorm ways the shells may have been used by the Late Archaic people who built the shell ring thousands of years ago. Have your students write their answers on the handout.
9. Show your students the Archaeo-Tech: Shell Tools video (linked in the resources tab). This video shows how the people of Pockoy modified whelk shells to create tools, like axes, adzes, and hammers.
10. Discuss the video with your students. Reiterate key points from the video.
11. Optional. Show your students the “Ancient Oyster” sound bite (linked in the resources tab).
12. Explain that mollusks are not the only thing the people at Pockoy ate. Turtle shell, crab claws, fish bones, stingray jaw plates, and mammal remains (such as deer, raccoon, and opossum) are also found in the shell ring, preserved for thousands of years by the calcium of the shell. Ask your students what kind of food is missing from this list. Remind your students that the people who lived at Pockoy predate agriculture. They gathered edible wild plants to supplement their diets, but plant material is not preserved in the archaeological record.
13. Conclude the lesson by exploring the connection between the shell ring and the local environment with your students. How closely were the people at Pockoy and their culture tied to the natural resources around them? How connected were these people to the local coastal environment and the mollusks that thrived in that specific habitat? Is our culture as deeply tied to our local environment today? Have your students explore these open-ended questions as a class discussion. They may also write their answers on the back of their handout.
Teacher Notes
differentiation: During the brainstorming session about how shells were used, provide students with a word bank or sentence starters to guide their ideas. This can include examples like "cutting tool," "container," "jewelry," or "decoration." These prompts can help struggling students generate ideas about the potential uses of the shells
extension: Have them conduct independent research on their chosen mollusk. This research can include topics like:
- Detailed anatomy and physiology
- Unique adaptations for its specific habitat
- Cultural significance in different societies throughout history
- Threats to its population and conservation efforts
Shell Tools Video
Learn about Late Archaic shell tool technology along the South Carolina coast from experimental archaeologist Scott Jones.
View ResourceStandards
- 3.2.2.ER Identify and analyze the ways people interact with the physical environment in different regions of the state, the country, and the world.
- 6.1.CO Compare the development of social systems among the early river valley civilizations.
- 3-LS4-3. Construct an argument with evidence that in a particular habitat some organisms can thrive, struggle to survive, or fail to survive.
Assessments
Use the Mollusk Identification Handout linked in the resources tab to assess student learning outcomes.
