Analysis of hypotheses formulated by high school students in Natural Sciences

Santos, Lílian Moreira dos; Locatelli, Solange Wagner

doi:10.14393/er-v32e2025-12

Resumo • Ensino em Re-Vista 32 • 2025 • DOI: https://doi.org/10.14393/er-v32e2025-12

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Ensino em Re-Vista

On-line version ISSN 1983-1730

Abstract

SANTOS, Lílian Moreira dos and LOCATELLI, Solange Wagner. Analysis of hypotheses formulated by high school students in Natural Sciences. Ensino em Re-Vista [online]. 2025, vol.32, e2025-12. Epub Nov 27, 2025. ISSN 1983-1730. https://doi.org/10.14393/er-v32e2025-12.

The main objective of this study was to examine the quality of hypotheses and prior knowledge of high school students at a public school in São Paulo. This analysis used a didactic sequence based on Inquiry-Based Teaching (IBT). The quality of the hypotheses was assessed using classifications and criteria established by Lakatos and Marconi (1991, 2003). The results indicated that the hypotheses consisted of straightforward statements accompanied by secondary complements. The analysis uncovered contradictions and unclear aspects in interpreting the problem, negatively impacting the students’ critical thinking and perspectives. Furthermore, prior knowledge regarding water quality, mining activities, potability, and pollution from human activities was detected.

Keywords : Hypothesis; Inquiry-based teaching; High school; Chemistry Education..

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