[MARYLAND SEA GRANT - OYSTERS IN THE CLASSROOM
[Teacher Resources (5E)]

ENGAGEMENTEXPLORATIONEXPLANATION
EVALUATION IEXTENSIONEVALUATION II


ENGAGEMENT:
There are many efforts underway to reestablish oyster populations in the Chesapeake Bay. What factors influence the decision to use a particular site? What must scientists know about oyster anatomy and ecology that will guide them to make the best decision? Can a site such as the Baltimore Inner Harbor support new oyster populations?

These questions, or others generated by students, can be used as the foundation for group presentations by the students as an evaluation of their learning.

Suggested Activities
Matching Core Learning Goals
Introduction to the Laboratories

3.4.1, 3.4.2

"Common Ground" CBF video
Clearing demo in CBF video

3.2.1, 3.2.2, 1.2.1, 1.2.2, 1.2.7, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.4.2



EXPLORATION:

Students work through these self-paced web-based activities to learn about oyster anatomy. The lesson can be downloaded for Mac or PC and run locally on multiple computers. Note the safety precautions in the text of the activities.

Suggested Activities
Matching Core Learning Goals
Oyster Anatomy Lab

 
External Anatomy of the oyster
3.2.1, 1.4.2
Examination of shell for artifacts
3.5.2
Devise and test a method to open (shuck) an oyster
1.2.3, 1.2.4
Internal Anatomy
of the oyster examines the major organs, their function, and a comparison/contrast to the human body.
3.2.1, 1.4.2

EXPLANATION:
Students receive immediate feedback from their responses to questions throughout the Exploration.

Suggested Activities
Matching Core Learning Goals
Questions throughout the Oyster Anatomy Lab
1.5.1, 1.5.2, 1.5.9, 1.7.1
Student group work to prepare for presentations
Dialogue with teacher

EVALUATION I:
The teacher should closely monitor these investigations to check for understanding and correct misconceptions.

Suggested Activities
Matching Core Learning Goals
Questions throughout the lab can be used as a means of quantitative evaluation.
Dialogue with teacher
by individuals or groups of students.

EXTENSION:
The investigations that students choose in this section depend on the resources available in the classroom or the proximity of field sites.

Suggested Activities
Matching Core Learning Goals
Filtering Mechanism Experiment
This experiment will reinforce structure and function of oyster anatomy and will demonstrate the selective process of filtering materials by oysters from their environment.
3.2.1, 1.4.2
Hunting for Hemocytes Investigation
This experiment will reinforce structure and function of oyster anatomy and will extend these concepts to include the immune system of the oyster.
3.2.1, 3.2.2, 3.5.1
Research:
Reasons for oyster decline in Bay
1.4.6,1.4.9, 1.5.1, 3.5.3
Impact of oysters on water clarity in Bay
3.5.1, 3.5.2
Virginia efforts to introduce Asian oysters to Bay
1.7.1, 1.7.2
Contact Maryland Sea Grant staff from Horn Point Lab, Chesapeake Biological Lab, and the Center of Marine Biotechnology.
Dr. Don Meritt, meritt@mdsg.umd.edu
Jackie Takacs, takacs@mdsg.umd.edu
J. Adam Frederick, frederic@mdsg.umd.edu

EVALUATION II:
Students can work in small groups to prepare and present their conclusions to the class. The teacher may also choose to require the students to prepare questions based on each presentation which can then be edited and compiled into a more formal assessment.

Suggested Activities
Matching Core Learning Goals
Student presentations that provide answers to the questions in the Engagement section.
1.5.9, 1.7.1
Formal assessments (particularly Constructed Response items)

Goal 1 & 3