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首页> 外文期刊>Journal of Chemical Education >Exposure to Nanoscience and Nanotechnology Using Guided-Inquiry-Based Activities with Silica Aerogel To Promote High School Students' Motivation
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Exposure to Nanoscience and Nanotechnology Using Guided-Inquiry-Based Activities with Silica Aerogel To Promote High School Students' Motivation

机译：利用基于硅气凝胶的指导查询活动接触纳米科技和纳米技术，促进高中学生的动机

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Nanoscience and nanotechnology are the study and application of materials on a nanometer scale. These fields of study aid the developments of innovative technologies that play an important role in our everyday lives. Enabling students to learn these topics makes learning more meaningful and helps prepare them for future technologies. This study aimed to investigate the effects of learning activities about nanoscience and nanotechnology on students' motivation. The designed activities were based on guided-inquiry learning using silica aerogel as the nanomaterial. This material has many interesting properties such as high thermal insulation, low acoustic velocity, very low density, very high specific surface area, etc., which are influenced by structures on the nanometer scale. A variety of teaching methods, including learning with models, multimedia, hands-on activities, and guided-inquiry learning, were implemented to promote the students' motivation. There were 28 grade 12 science students sampled for this purpose. Three actual methods were adopted to determine the effectiveness of the learning activities, including questionnaires implemented before and after the activities, students' self-assessments, and semistructured interviews at the end of the activities. The results from the questionnaires showed that the students were highly motivated by the nanoscience and nanotechnology learning activities. The students' self-assessment and interviews revealed that the learning activities encouraged the students to learn by allowing them to experience various teaching materials. The students became more interested in finding more information about silica aerogel and other nanomaterials used in daily life.
机译：纳米科学和纳米技术是纳米级材料的研究和应用。这些研究领域有助于开发在日常生活中发挥重要作用的创新技术。让学生学习这些主题使学习更有意义并帮助他们为未来的技术做好准备。本研究旨在调查学习活动对纳米科技和纳米技术对学生动机的影响。设计的活动基于使用二氧化硅气凝胶作为纳米材料的导探查询学习。该材料具有许多有趣的性质，例如高热绝缘，低声速度，非常低密度，非常高的比表面积等，其受纳米级上的结构影响。实施了各种教学方法，包括与模型，多媒体，动手活动以及导游查询学习的学习，以促进学生的动机。为此目的进行了28级科学学生。采用了三种实际方法来确定学习活动的有效性，包括在活动中，学生自我评估之前和之后实施的调查问卷，以及在活动结束时进行了半结构的访谈。问卷调查结果表明，学生受到纳米科学和纳米技术学习活动的高度动力。学生的自我评估和访谈透露，学习活动鼓励学生通过允许他们体验各种教材来学习。学生们更感兴趣地找到有关在日常生活中使用的硅气凝胶和其他纳米材料的更多信息。

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