| Graphics and geometry",as one of the four major fields of elementary school mathematics knowledge,occupies an important position in the study of the whole primary school mathematics,and the "graphic" knowledge is an important part of the knowledge of "graphics and geometry".It is of great significance to conduct in-depth comparative analysis of graphics content.In this study,"plane graphics" in the teaching material of People's Education Press(2013 Edition)and Beijing Normal University Press(2013 Edition)is the target of the research,and the contents of "plane graphics" in two versions are compared from three dimensions of content arrangement,course difficulty and geometric thinking level.And the following conclusion is obtained.1.The content of the course(1)From the teaching structure,People's Education Press version have more chapters and the arrangement system is more rigorous.The content of the teaching is relatively early in Beijing Normal University Press and the arrangement is looser.(2)From the way of introduction,the two editions of the textbook is through the creation of the situation and the use of colorful illustrations,which stimulate students' interest in learning.The difference is that the teaching materials of the People's Education Press are closer to the students' lives,so that mathematics is integrated into life.And the various mathematical information contained in the map provides students with different angles of material,which meets the needs of the students to diversify their learning.The Beijing Normal University Press is relatively straightforward.It likes to take a sneak peek and ask questions directly to allow students to identify problems and find ways to find solutions.(3)From the time,the distribution of the two editions of the textbook is different--not only the different distribution of the different contents,even the same content,the arrangement of the class is different,but the two editions of the textbooks put more classes in the "graphic" area of the teaching.(4)From the concept of formation,the two editions of the textbook is at the same time starting from the familiar life situation of the students,mobilizing their life experience and enriching their cognitive experience.Students are expected to abstract the related concepts through physical observation,helping students to deepen their understanding of the concept in order that they are able to use the knowledge flexibly.2.The difficulty of the courseIn the first section,the curriculum is more difficult than People's Education Press and Beijing Normal University Press.The difficulty of the curriculum is bigger than that of the Peking University Edition.The duration of the curriculum and the time of the Beijing Normal University Press are higher than that of the People's Education Press.In the second stage,the course of the People's Education Press is more difficult than the Beijing Normal University Press.The course covers a wider and deeper range than that of the Beijing Normal University Press.(1)From the grade analysis,the levels of geometric cognition of the contents of "plane graphics" in each grade of the two editions of the textbook are mixed.The levels of the geometric cognition of the content of the "plane figure" in each grade are both analysis level.(2)Analyzed from the whole,the contents of the "flat graphics" content in the two editions of textbooks cover the first three levels of Vanhill's geometrical thinking,reflecting the sequence of Vanhill's geometrical thinking;The two editions of textbooks all have the largest proportion of level 1,which means that the two editions of textbooks pay more attention to students' hands-on operational ability and the cultivation of comprehension and analysis ability in the content arrangement of “flat graphics”. |
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