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Saving Sturgeon: A Problem-Based Learning Approach

Explore the causes of sturgeon extirpation through complex, real-world cases in a cognitive apprenticeship environment. Tasks gradually introduce complexity, with student-led decision-making and support mechanisms like quizzes and causal maps. Develop critical thinking, prediction, and argumentation skills while tackling the global issue of extinction in the aquatic world.

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Saving Sturgeon: A Problem-Based Learning Approach

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  1. Fish & Wildlife Bio/Sci 2700:ICHTHYOLOGY A Problem Based Learning Environment

  2. Exemplar cases • Ill-structured authentic cases • What is causing the extirpation of sturgeon? • Multiple variables: • Overharvesting • Dam construction – habitat destruction • Pollutants • Invasive Species • Scaffolding in the form of partially constructed causal maps and other feedback on quizzes provides support to novice learners

  3. Complexity • Tasks gradually introduce complexity • Lake Sturgeon introduces overharvesting • Pallid Sturgeon uses overharvesting, dam construction, environmental pollution • Shovelnose increases complexity by adding issues related to invasive species and hybridization • Independent research on Paddlefish requires transfer as well as some unique problem-solving • Transfer of complexity from one case to the next

  4. Independent & group decision-making • True/False self-check quiz follows each case to check individual comprehension • Causal maps require students to reflect on the relation of threat to fish attributes such as life history, behavior, and morphology • Argumentation is applied to cases to predict outcomes and justify reasons among peers

  5. Support Provided • True/False self-check quiz provides feedback • Causal maps use a drag and drop function as well as comments to the student • Argumentation requires peer interaction • Concept map requires students to construct their own understanding of factors related to the extirpation of the species • Expert opinions provide guidance

  6. COGNITIVE APPRENTICESHIP • Real-world problem solving cases • Lake and Pallid Sturgeon are on the brink of extinction in 19 out of 20 states • Shovelnose face similar threats although some factors vary such as age of sexual maturity • Paddlefish is another local fish facing extirpation • Extirpation & Extinction of fish and aquatic wildlife are world-wide concerns

  7. COGNITIVE APPRENTICESHIP • Team formation – students may work in groups of 3-4 students, or independently • Students may work cooperatively or collaboratively • Argumentation requires students to analyze, reflect, articulate, and refine understandings • Prediction requires students to apply knowledge to understanding of species

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