鄞州区望春小学（Yinzhou District hope spring primary school）

鄞州区望春小学（Yinzhou District hope spring primary school） 鄞州区望春小学(Yinzhou District hope spring primary school) Yinzhou District hope spring primary school website, school profile, small news, education, teaching, moral education, space-time study, teacher channel, student garden, characteristics, education, research online, today is: May 22, 2012 Tuesday user name: Password: Yinzhou hope primary school integrated practice group Si PIN Si Language group mathematics group English Group sports group Science Group music group Art Group Information group You are now located: Yinzhou hope spring primary school, hope spring primary school education, teaching and research group management, mathematics group, "rotation" lesson of teaching reflection Author: Xu Meizhen edit date: 2009-2-26 15:54:34 hits: 34 reply (0) Reflections on the teaching of "rotation" Author: beautiful lotus source: the original hits: 692 update time: 2009-2-26 Reflections on the teaching of "rotation" "Rotation" lesson is "pep" the fifth grade mathematics volumes first unit "graphic transformation" in second class teaching content, because of my new curriculum is the first contact with this kind of teaching, teaching content from no, no experience in teaching, the teaching method is also introduced to others is rare, feel confused. Therefore, when I prepare a lesson, I will first review the contents of Book 1 through ninth, and understand the basic knowledge of students in this field. I found the second grade third unit "graphics and transform", with examples, the students have an initial perception of rotation phenomenon, the rotation of the unit is mainly from the point of life to make the students aware, so that students can distinguish roughly rotation phenomenon, and through the operation of graphics in simple rotation. The object moves in a circle at a point or an axis, and can be approximated as a rotation. Students have been able to identify rotation phenomenon in life, but also to learn "the fifth grade 2 students now to" rotation, rotation to achieve what goals? After carefully reading the reference, found that this lesson is to let students further understand the graphics rotation, explore the characteristics and properties of graph rotation, can on a graph paper to simple graphics rotate 90 degrees, learn how to use the method of rotating the design pattern on the grid paper, and further enhance the sense of space. According to the teaching objectives, and the basis of the existing students, I think to do well in this lesson, let students achieve the objectives of this lesson, the key is the direction of rotation and the rotation angle of the problem, according to the provisions of the difficulty is to draw graphics angle rotation, so I think this is the key point in the class. Class import, I let the students recall you know angle, and these are arranged from small to large angle; then show the clock, clear from the rotating direction of rotation and the minute hand of the minute walk angle is 30 degrees; then let students understand that rotation is the point of graphics, the actual rotation point is the center point and the rotation point of the line joining the rotation. Through such teaching links, students have achieved the goal of learning in this lesson. Article entry: Xu Meizhen, editor in chief: Xu Meizhen The puzzle of RMB Teaching Next: "playing in the middle, in the school of music" -- assembled graphics - the central site of Zhejiang education online education, the Education Department of Zhejiang province Chinese CERNET People's Republic of China Ministry of Education Zhejiang qianjiangchao Kaifeng Education Resources Network Network Network -- city education website of Ningbo city under the jurisdiction of the CERNET, Yinzhou education network education website - website units directly under the old school website Shanghai Xintong --- other websites Baidu Hope spring primary school All Rights Reserved (C) Copyright 2007 Administrator: Raytheon Zhejiang ICP, number 05018215