在正式指令之前,孩子们可以绘制精确的数字单词来近似算术
1Department of Psychology, University of British Columbia.
Developmental psychology
|August 4, 2025
概括
孩子们可以通过他们的直观数感来估计近似的除法,一旦他们将数字词与它联系起来. 这项研究表明,幼儿精确地执行近似算术,弥合直观和正式数学.
科学领域:
- 认知心理学 认知心理学
- 发展心理学 发展心理学
- 数学的认知能力数学认知能力
背景情况:
- 人类具有天生的直观数值感,用于表示和操纵数量.
- 学校数学需要精确的数值答案,与直观估计不同.
- 将数字单词映射到直观的数感是数学发展的关键.
研究的目的:
- 为了调查孩子们是否能进行近似的算术估计,特别是除法,在将数字词映射到他们直观的数感之后.
- 确定儿童大致划分估计的准确性和灵活性.
- 探索这种数学推理能力背后的机制.
主要方法:
- 共有45名5岁至8岁的儿童参加了这次活动.
- 使用视觉刺激 (点) 进行了近似的划分任务.
- 参与者根据提供的单位除数 (1, 3,或5) 估计了数量.
主要成果:
- 孩子们表现出非常准确的近似划分估计.
- 根据除法,灵活调整了答案.
- 有证据表明,孩子们并不依赖于简单的"作弊"策略.
结论:
- 数字词和直观的数值能力之间的接口支持儿童的近似算术推理.
- 儿童可以为近似操作生成精确的数值估计.
- 这种能力突出了从直观基础发展复杂的数学推理.
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