Developing Students’ Systems Thinking Capabilities with Case-Based Learning and Concept Mapping: A Quasi-Experimental Study on Ecosystems and Feeding Relationships

Key findings from this study

This research indicates that:

• Case-based learning combined with concept mapping yielded larger gains in relational thinking about ecosystems than in identifying isolated components.
• Higher-order systems thinking capacities such as generalization and temporal reasoning developed minimally within a single instructional unit.
• Students shifted from isolated ecological facts toward more relational explanations of relationships and matter-energy cycles.

Overview

This quasi-experimental study examined whether an instructional package combining case-based learning and concept mapping improved eighth-grade students' systems thinking capabilities within an ecosystems unit. The research involved 177 students from six intact classes who completed parallel pre- and post-assessments. Each experimental class was taught by a different teacher, with the experimental teacher receiving targeted preparation.

Methods and approach

Student-level repeated-measures analyses compared pre- and post-assessment performance across the Systems Thinking Hierarchy. The hierarchy encompassed identifying components and processes, understanding relationships and organization, grasping matter-energy cycles, and demonstrating generalization, temporal reasoning, and hidden dimensions.

Results

No clear differential growth pattern emerged at the level of identifying components and processes. Larger observed gains appeared in understanding relationships, organization, and matter-energy cycles. A smaller pattern in the same direction emerged for generalization, temporal reasoning, and hidden dimensions. The instructional package appeared associated with students' movement toward relational explanations rather than isolated ecological facts. Higher-order systems thinking capacities remained difficult to develop within the unit timeframe.

Implications

Classroom enactments combining case-based learning and concept mapping may support intermediate-level systems thinking but insufficient for developing advanced reasoning about ecosystems. Longer-term scaffolding appears necessary across multiple instructional units to address higher-order systems thinking dimensions. Teacher preparation influenced implementation, suggesting that instructional effectiveness depends partly on educator support.

The nested design—with students within classes and different teachers per condition—limits causal attribution to the instructional package alone. Findings represent associations under routine classroom conditions rather than teacher-independent effects. Future research should employ designs separating instructional package effects from teacher-specific contributions.

Scope and limitations

This summary is based on the study abstract and available metadata. It does not include a full analysis of the complete paper, supplementary materials, or underlying datasets unless explicitly stated. Findings should be interpreted in the context of the original publication.