REPRÉSENTATIONS CONCEPTUELLES D'ÉTUDIANTS DU SECONDAIRE PROFESSIONNEL: PROPRIÉTÉS PHYSIQUES DE LA DIODE NON POLARISÉE / CONCEPTUAL REPRESENTATIONS OF STUDENTS PROFESSIONAL SECONDARY: PHYSICAL PROPERTIES OF THE NON-POLARIZED DIODE
Bibliographic record
Abstract
Une méthode de recherche de type qualitatif a permis d’identifier les représentations conceptuelles d’étudiants du secondaire professionnel (17 à 20 ans) au Québec, en ce qui concerne les propriétés physiques d’un objet technique, à savoir une diode non polarisée. Nous procédons à cette reconstitution à partir de moyens classiques, tels le questionnaire écrit et les entretiens individuels. Cette étude nous permet, d’une part, de mettre en évidence ces conceptions et, d’autre part, de proposer quelques orientations didactiques. Notre recherche démontre qu’après un enseignement formel, les conceptions des élèves interrogés sont erronées comparativement à celles communément acceptées. Ces résultats mettent en lumière une mauvaise appropriation de notions telles que les porteurs de charges mobiles (électrons et trous) et les porteurs de charges fixes (ions). Following the guidelines of qualitative type research, we shall in this paper reconstitute the conceptual representations by secondary level students at the professional school (ages 17-20) of physical phenomena which subtend the physical properties of the non-biased diode. For the first time, this study shows that their conceptions of these phenomena are erroneous. In a second time, we identify the physical phenomena on which the educator should facilitate the students to construct conceptions that conform to the scientific norm. Article visualizations:
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.007 |
| Scholarly communication | 0.005 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.008 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".