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Proportional Reasoning and Belief of Pre-Service Mathematics Teachers: The Use of Modified Authentic Investigation Activities (AIA) Model

机译:比例推理与服务前数学教师的信念:使用改进的真实调查活动(AIA)模型

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Proportional reasoning is fundamental for students as a part of higher-level mathematical reasoning. It is not only fundamental for students to learn mathematics but also important for teachers and pre-service mathematics teachers having a good capability in proportional reasoning because it can lead them to teach better mathematics. This study aims to analyze the implementation of Authentic Investigation Activity (AIA) model for enhancing proportional reasoning and beliefs of pre-service mathematics teachers. This is an experimental study with pre-test and post-test design. The population of this study are second year of pre-service mathematics teachers in mathematics education department of Garut District, West Java Province, Indonesia. Using random cluster sampling are 70 pre-service mathematics teachers as the sample of the study for both. The instrument in this study is a set of test that constructed for measuring the proportional reasoning of pre-service mathematics teachers and a set of the questioner for measuring mathematical beliefs of pre-service mathematics teachers. The proportional reasoning test consisted of six essay problems in the topic of ratio and proportion with three indicators: 1) differentiating proportional and non-proportional situation; 2) understanding the mathematical relationship in the proportional situation; and 3) solving the various problem in the proportional situation. The data were analyzed quantitative using a t-test and Mann-Whitney U test. The result of the study indicates that the AIA model can enhance the proportional reasoning of pre-service mathematics teachers especially in terms of differentiating proportional and non-proportional situation and understanding mathematical relationship in the proportional situation but not in solving the various problem in the proportional situation. However, the AIA model gives similar result for mathematical beliefs of pre-service mathematics teachers.
机译:比例推理是学生的基础,作为高层数学推理的一部分。对于学生来说,学习数学的基础是对教师和售前数学教师来说也很重要,因为它可以引导他们教授更好的数学。本研究旨在分析正宗调查活动(AIA)模型的实施,以提高售前数学教师的比例推理和信念。这是测试预测试和测试后设计的实验研究。本研究人口是在印度尼西亚西爪哇省西爪哇省的大学教育部数学教育部的第二年的数学教师。使用随机群集采样是70名售前数学教师,作为两者的研究样本。本研究中的仪器是一系列测试,用于衡量售前数学教师的比例推理以及用于测量售前数学教师的数学信仰的一套质疑。比例推理试验由比例和三个指标比例的六个论文问题组成:1)区分比例和非比例情况; 2)了解比例情况的数学关系; 3)在比例情况下解决各种问题。使用T检验和Mann-Whitney U测试分析数据进行定量。该研究的结果表明,AIA模型可以提高服务前数学教师的比例推理,特别是在分化比例和非比例情况方面,并在比例情况下了解数学关系,但不在对比例中解决各种问题而言情况。然而,AIA模型为售前数学教师的数学信仰提供了类似的结果。

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