Subitizing

Subitizing is the rapid, accurate, and confident judgements of numbers performed for small numbers of items. The term was coined in 1949 by E.L. Kaufman et al., and is derived from the Latin adjective subitus (meaning "sudden") and captures a feeling of immediately knowing how many items lie within the visual scene, when the number of items present falls within the subitizing range. Number judgments for larger set-sizes are referred to either as estimating if insufficient time is available for observers to accurately count all the items present, or counting otherwise.

单词	Subitizing
释义	Subitizing 原声例句科学60秒-科学美国人 2019年2月合集 People who excelled at subitizing also tended to perform better on the other tasks. 数感能力强的人往往在其他任务上的表现也更好。英语百科 Subitizing Subitizing is the rapid, accurate, and confident judgements of numbers performed for small numbers of items. The term was coined in 1949 by E.L. Kaufman et al., and is derived from the Latin adjective subitus (meaning "sudden") and captures a feeling of immediately knowing how many items lie within the visual scene, when the number of items present falls within the subitizing range. Number judgments for larger set-sizes are referred to either as estimating if insufficient time is available for observers to accurately count all the items present, or counting otherwise.
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