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随着现代教育技术的发展,特别是省编义务教育新教材的推广使用,促使了投影教学媒体在小学数学教学中广泛运用。本文试从小学数学的学科特点及小学生的认知特征出发,结合省编义务教育小学数学投影教材的编制特点,剖析小学数学投影教学的原理与技术,供教学中参考和研讨。一、数学抽象与认知形象数学是以客观世界的数量关系和空间形式为研究对象的一门科学。与小学语文、常识等学科相比,小学数学学科内容具有高度概括、抽象的特点。而小学数学教学的对象是7至12岁的儿童,由于他们的认知能力尚处于早期的
With the development of modern educational technology, especially the popularization and application of the new compulsory education textbooks, the projection teaching media has been widely used in the elementary mathematics teaching. Based on the characteristics of primary school mathematics and primary school students’ cognitive features, this paper tries to analyze the principle and technology of primary school mathematics projection teaching for the reference and discussion in the teaching. First, the mathematical abstraction and cognitive image Mathematics is based on the number of objective world relations and spatial forms for the study of a science. Compared with the primary language, common sense and other disciplines, primary school mathematics content has a highly summarized, abstract features. The primary mathematics teaching is targeted at children aged 7 to 12, because of their cognitive ability is still early