Prevalence of blood circulation misconceptions among prospective elementary teachers.
Prevalence of blood circulation misconceptions among prospective elementary teachers.
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未来小学教师普遍存在血液循环误解。
DOI：
10.1152/advan.00022.2004
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发表时间：
2005
影响因子：
2.1
通讯作者：
Mildred A. Hoover
中科院分区：
文献类型：
--
作者：
N. Pelaez;Denise D. Boyd;Jacqueline B. Rojas;Mildred A. Hoover
研究表明，对人体血液循环和气体交换的误解在各个年级都存在。本研究的目的是双重的：1）调查未来的小学教师中的血液循环误解的流行率和持续性; 2）评估学习活动的有效性，以发现学生对血液循环和肺功能的了解和解释。背景是一个本科生介绍生物课程，由两名教授在三个学期在州立大学。独立的评论家确定了五类关于血液循环的错误观点。在课程结束时，许多类别仍然存在问题：70%的准小学教师不了解双血液循环途径，33%对血管感到困惑，55%对气体交换有错误的想法，19%对气体运输和利用有困难，20%不了解肺功能。结果表明，一个关于绘画作为期末考试的采访是显着更好地揭示不同的错误和更高的错误的想法频率相比，论文exam. There是一个迫切需要的教学工具，以帮助本科生认识到自己的想法之间的差异血液循环和科学界。
Research shows that misconceptions about human blood circulation and gas exchange persist across grade levels. The purpose of this study was twofold: 1) to investigate the prevalence and persistence of blood circulation misconceptions among prospective elementary teachers and 2) to evaluate the effectiveness of learning activities for discovering what students know and can explain about blood circulation and lung function. The context was an undergraduate introduction to biology course taught by two professors across three semesters at a state university. Independent reviewers identified five categories of erroneous ideas about blood circulation. Many categories still presented problems to students at the end of the course: 70% of prospective elementary teachers did not understand the dual blood circulation pathway, 33% were confused about blood vessels, 55% had wrong ideas about gas exchange, 19% had trouble with gas transport and utilization, and 20% did not understand lung function. Results show that an interview about a drawing as a final exam was significantly better at revealing different errors and a higher frequency of erroneous ideas compared with an essay exam. There is an urgent need for instructional tools to help undergraduate students realize the discrepancies between their own ideas about blood circulation and those of the scientific community.