Applied Science Testing¶

Strategy · All strategies
Evidence · 2 claims (2 for) · 6 studies (3 quant-synthesis, 2 causal, 1 theoretical), q2–q4 · 3 of 6 report an effect size

Description¶

Applied science testing engages learners in using scientific principles and procedures to evaluate real-world materials and products — for example, testing the solubility of different packing materials or comparing the quality and price of plastic kitchen wraps. Learners design or follow test protocols, collect data, and justify evaluative conclusions, treating everyday products as objects of scientific inquiry.

Design Implications¶

Hands-on evaluation of authentic products situates science content in contexts learners recognize, supporting transfer and motivation Hands-on laboratory work improves science understanding when structured with clear goals. [+M]. The evaluative framing matters: learners must articulate criteria, apply a consistent procedure, and defend judgments with evidence, which converts a demonstration into genuine Application of scientific reasoning. Comparing multiple products side by side supports abstraction of the underlying property being tested Comparing multiple contrasting cases supports abstraction of domain principles. [+M].

Context¶

Requirements¶

• Real, inexpensive consumer materials (packing materials, plastic wraps, water, measuring tools)
• A well-defined evaluation criterion (e.g., solubility, strength, clarity) and a repeatable test procedure
• A recording structure (data table or rubric) so observations become comparable evidence
• A follow-up discussion where learners justify their evaluations from their data

Constraints¶

• Unguided "hands-on" activity without a clear question or criteria produces activity without learning Laboratory work without explicit learning goals and structure yields poor conceptual gains. [-S] — Hofstein & Lunetta's review shows unstructured labs often fail to produce conceptual understanding
• Product comparisons can reinforce naive "brand = quality" reasoning if the test does not isolate the relevant variable
• Some materials (chemicals, water, small parts) require safety supervision, especially for young learners
• Results may be noisy or ambiguous; learners need support interpreting inconsistent data rather than discarding it

Implementation Variability¶

• Learners can follow a given protocol (younger grades) or design their own test (older grades), shifting emphasis from procedure-following to experimental design
• Criteria can be extended to cost-per-use or environmental impact, adding quantitative reasoning
• Results can feed into a recommendation task (e.g., "which wrap should the school buy?"), adding an authentic audience and purpose

Target Learners¶

• Elementary and middle-grade learners (K–8) encountering properties of matter and consumer science
• Learners who benefit from concrete, tangible anchors before abstract property definitions
• Reluctant science learners, for whom everyday products lower the entry barrier to scientific reasoning

Target Learning Goals¶

• Applying scientific principles to real-world scenarios (properties of materials, solubility)
• Evaluative reasoning: forming criteria, gathering evidence, justifying judgments
• Understanding the social relevance of science in daily consumer decisions

Instructions¶

1. Present the everyday question ("Which packing material dissolves fastest? Which wrap is best value?") and elicit learners' initial predictions and criteria.
2. Model the test procedure with one product, making measurement decisions explicit (Demonstration).
3. Have learners test the remaining products in small groups, recording observations (Practice).
4. Ask groups to compare results across products and explain differences using the target science concept (Application; Self-Explanation).
5. Conclude with a justified recommendation or claim-evidence-reasoning write-up (Assessment).

Related Strategies¶

• Case Studies/Case-Based Learning — also grounds science in real-world contexts, but through narrative analysis rather than direct testing
• Product Testing — the broader family of consumer-evaluation activities

Examples¶

• Packing Materials (NYSED) — Learners test the solubility of different items used in packing, recording dissolution under identical conditions.
• Plastic Wrapped (KDE) — Learners compare the quality and price of different plastic kitchen wraps, then justify which product offers the best value.
• Consumer Reports classroom programs — Published product-testing curricula that supply protocols and data tables for student evaluations.

Key Sources¶

• Hofstein, A., & Lunetta, V. N. (2004). The laboratory in science education: Foundations for the twenty-first century. Science Education, 88(1), 28–54. doi:10.1002/sce.10106
• Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58. doi:10.1177/1529100612453266
• National Research Council. (2000). How people learn: Brain, mind, experience, and school (expanded ed.). National Academy Press.
• Minner, D. D., Levy, A. J., & Century, J. (2010). Inquiry-based science instruction—what is it and does it matter? Results from a research synthesis years 1984 to 2002. Journal of Research in Science Teaching, 47(4), 474–496. doi:10.1002/tea.20347