周长（Perimeter）.docVIP

周长（Perimeter） Perimeter Unit: Cangnan city Wenzhou County town of a small zip code: 325803 Tel:First, the teaching content PEP compulsory education curriculum standard experimental textbook mathematics the third grade: P41 Two, teaching preparation Shapes of various shapes, ropes, tapes, ribbons, cards Three, teaching objectives and Strategies 1, target determination: is the perimeter of PEP compulsory education curriculum standard experimental textbook mathematics on the third grade third unit P41 Teaching content, it is a mathematics concept lesson. It is for students to master the basic understanding of various graphics on teaching, and students living in close contact with it, through this lesson, the preliminary training space concept of students, cultivate students mathematical consciousness and autonomy, cooperation and inquiry ability. Knowledge objectives: understand the meaning of the perimeter by various forms of perception, and solve some simple practical problems. Ability goal: train students comprehensive ability of observation, imagination and analysis and group cooperation ability. Third, emotional goals: through the exploration of cooperative learning movement, stimulate students enthusiasm for learning, and cultivate students awareness of cooperative inquiry. 2, teaching strategy choice: The teaching to the students the greatest degree of participation as the basic principle, using the method of self inquiry learning, using a variety of sensory involvement in learning, the learning process for students discovering knowledge and learning process, making learning fun. Because the circumference is a mathematical concept, and we in the primary school stage, most of the concepts under no strict definition, but from the students understanding of the actual case or existing knowledge and experience of nature to help them comprehend the concept of. Therefore, this course combines a large number of physical and graphic content, through student