Examining and developing fourth grade children’s area estimation performance

Examining and developing fourth grade children’s area estimation performance
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检查和发展四年级儿童的面积估计表现

DOI:
10.1111/ssm.12386
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发表时间:
2020
影响因子:
1.1
通讯作者:
Van Dine, Douglas W.
Van Dine, Douglas W.
中科院分区:
--
文献类型:
--
作者:
Eames, Cheryl L.;Barrett, Jeffrey E.;Cullen, Craig J.;Rutherford, George;Klanderman, David;Clements, Douglas H.;Sarama, Julie;Van Dine, Douglas W.

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本研究探讨了儿童的面积估计表现。两组四年级儿童完成了面积估计任务,矩形的范围从5到200个正方形单位。随机分配的治疗组完成了包括概念性面积测量策略和数字反馈在内的教学课程。孩子们倾向于低估长方形的面积。此外,矩形大小与性能有关,因此估计误差和变异性随着矩形大小的增加而增加。治疗组在精确度方面表现出显著的面积估计性能,并减少了变异性和极端反应的情况。面积测量估计结果与面积测量的假设学习轨迹有关。
This study explored children’s area estimation performance. Two groups of fourth grade children completed area estimation tasks with rectangles ranging from 5 to 200 square units. A randomly assigned treatment group completed instructional sessions that involved a conceptual area measurement strategy along with numerical feedback. Children tended to underestimate areas of rectangles. Furthermore, rectangle size was related to performance such that estimation error and variability increased as rectangle size increased. The treatment group exhibited significantly improved area estimation performance in terms of accuracy, as well as reduced variability and instances of extreme responses. Area measurement estimation findings are related to a Hypothetical Learning Trajectory for area measurement.
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