Development and evaluation of an inquiry-based, era-based science curriculum module to enhance conceptual understanding of energy and conservation in high school settings.

Project Abstract

This study reports on the design, implementation, and evaluation of an inquiry-based, era-based science curriculum module aimed at enhancing high school students’ conceptual understanding of energy and conservation. The module integrates historical perspectives and pivotal scientific discoveries to scaffold students’ reasoning about energy forms, transformations, and the laws of conservation within real-world contexts. A mixed-methods approach was employed in a quasi-experimental design across two matched classrooms in a public high school. One group experienced the era-based module (n = 28), while a comparison group followed a traditional textbook-centric curriculum (n = 26) over a six-week unit. Quantitative data were collected using a validated energy and conservation conceptual understanding instrument administered as a pre-test, immediate post-test, and a delayed post-test (eight weeks post-intervention). Reliability and validity analyses confirmed the instrument’s internal consistency (Cronbach’s alpha = 0.86) and construct validity through factor analysis aligning with core concepts forms of energy, energy transfer and transformation, conservation laws, systems thinking, and measurable versus non-measurable energy. Qualitative data were gathered from classroom observations, think-aloud protocols during problem-solving tasks, and semi-structured interviews with a purposeful sample of students (n = 8) to examine epistemic engagement, sense-making strategies, and the influence of historical contexts on reasoning. Results indicated a statistically significant improvement in the experimental group’s conceptual understanding compared to the control group (F(2, 50) = 9.45, p < .001; partial eta-squared = .27), with the most pronounced gains in applying conservation principles to novel situations and in reasoning about energy transfers in closed systems. Immediate post-test scores showed a moderate to large effect size (Cohen’s d = 0.72), while the delayed post-test demonstrated sustained gains (d = 0.64). Qualitative findings complemented the quantitative results students using the era-based module demonstrated deeper engagement, active hypothesizing, and coherence in linking historical experiments (e.g., Carnot’s principles, Joule’s experiments, and modern energy audits) to formal content representations like energy flow diagrams and conservation equations. Think-aloud analyses revealed that students employed more robust argumentation frames, incorporating data interpretation and model-based reasoning, rather than rote memorization. The study also examined implementation fidelity and instructional processes through a structured rubric, indicating high adherence to inquiry protocols, facilitated discourse, and iterative assessment. Teachers reported that the era-based design helped make abstract concepts tangible by situating them within authentic scientific-technical narratives, thereby enhancing student motivation and sense of scientific agency. However, some challenges emerged, including initial adjustment to inquiry-driven facilitation and the need for targeted professional development to scaffold students’ metacognitive monitoring during complex reasoning tasks. Implications for science education include the potential of era-based, inquiry-driven curricula to strengthen conceptual understanding of energy and conservation while fostering historical literacy and systems thinking. The findings offer guidance for curriculum designers, educators, and policymakers seeking to promote deeper physics-science understanding through integrated, historically contextualized inquiry experiences in secondary classrooms. Recommendations for future research include exploring longitudinal impacts across diverse school settings, refining assessment instruments to capture nuanced epistemic growth, and examining scalable professional development models to support teachers in implementing era-based inquiry modules.

Project Overview

What This Project Is About

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A straightforward exploration of how a classroom module that uses real historical eras and inquiry-based activities can help high school students better understand energy and conservation concepts. It looks at teaching methods, content alignment with standards, and how students’ ideas change through hands-on exploration and discussion.

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The Problem It Addresses

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Many students struggle with energy concepts and the idea that energy can change forms while the total amount stays the same. Traditional teaching often focuses on memorization rather than understanding. This project tests whether linking science ideas to different historical eras and guiding questions can help students think more clearly about energy and conservation.

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Objectives of the Project

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1. Assess whether era-based inquiry activities improve student understanding of energy concepts.
2. Describe how students’ thinking about energy and conservation changes during the unit.
3. Provide a teaching module outline that teachers can implement in high school classrooms.
4. Identify challenges teachers face when using inquiry-based, era-themed lessons.

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What You Will Do Step by Step

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1. Review existing energy and conservation materials and select suitable era anchors.
2. Design an inquiry-based module that ties eras to energy ideas and conservation laws.
3. Pilot the module with a small group of classes and collect pre- and post-assessments.
4. Analyze changes in understanding using simple comparisons of scores and student explanations.
5. Gather feedback from teachers on usability and clarity of the activities.

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Expected Outcome

Anticipated outcomes include improved conceptual understanding of energy and conservation among students, a practical teaching module ready for classroom use, and insights into how era-based inquiry affects learning. The work may inform curriculum design and professional development for science teachers.