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Children's strategy use in computational estimation
P Lemaire1, M Lecacheur, F Farioli
1CREPCO-CNRS, France. lemaire@newsup.univ-mrs.fr
Summary
Ten-year-old children adapt their computational estimation strategies, like rounding and truncation, for speed and accuracy. Findings shed light on numerical cognition and strategy effectiveness in young learners.
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Mathematics Education
Background:
- Computational estimation is crucial for mathematical understanding.
- Children's strategy selection in estimation is not fully understood.
- Previous research indicates varied effectiveness of different estimation strategies.
Purpose of the Study:
- To investigate the strategies ten-year-old children use for computational estimation.
- To determine the frequency and effectiveness of these strategies.
- To examine if children adapt their strategy choices for optimal performance.
Main Methods:
- Children aged ten were presented with arithmetic problems requiring estimation.
- Their strategy use was observed and categorized into four types: rounding with decomposition, rounding without decomposition, truncation, and compensation.
- Strategy frequency, effectiveness, and adaptive selection were analyzed.
Main Results:
- Four distinct strategies were identified: rounding with decomposition, rounding without decomposition, truncation, and compensation.
- These strategies varied in their frequency of use and effectiveness.
- Children demonstrated adaptive strategy selection, choosing methods that led to faster and more accurate estimations.
Conclusions:
- Ten-year-old children employ a range of computational estimation strategies.
- Strategy effectiveness and frequency differ, with adaptive selection observed.
- Findings contribute to understanding numerical cognition and strategy development in children.