Analysis of problem solving strategies on electricity problems in 12 to 13 year olds |
| |
| Authors: | Paulette Rozencwajg |
| |
| Institution: | 1. Service de Recherches, I.N.E.T.O.P. (CNAM), 41 rue Gay Lussac, 75005, Paris, France
|
| |
| Abstract: | Strategies implemented by 12–13 year olds to solve electricity problems are examined. Three factors account for observed strategies: - type of problem representation, itself dependent on the knowledge base;
- cognitive personality dimensions;
- form of problem statement.
Individual interviews were conducted. Each problem statement contained a perceptual ‘trap’ designed to induce contradictory responses. Strategies were coded for accuracy, latency, justification and control. Five types of problem solving strategies were observed: - a strategy based on misconceptions such as the vanishing current model;
- a similar strategy but greater verbalization of doubt;
- rush to use formulas;
- sequential analysis of circuit;
- application of principles learned in class.
Analysis shows that the target problems fell into two classes: problems that triggered automatic (canonical or calculatory) responses, and problems which were much more disruptive. The latter differentiated students who could handle contradictions and control their responses. Mention is also made of difficulties caused by the signified/signifier relationship. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
