Research On Teaching Elementary School Mathematics Textbooks "parallelogram Area.

" Parallelogram area " is the most basic one in the area of a plane figure calculation, geometry has a wide range of applications. The parallelogram area is learning area of triangle, trapezoid area and other integrated graphics area important basis, in the area of triangle and trapezoid area in the process of derivation has very important function and value. At the same time " parallelogram area " is also the primary school mathematics learning important traditional teaching content.According to the primary school mathematics " parallelogram area " as the research content, the " Syllabus "(curriculum standards)(hereinafter referred to as the " Outline "(or standard)) are studied, and then the different versions of textbooks on a comparative study, and the influence of different exercise conducted a comparative study. The teaching design and teaching methods study and analysis. Through the study found:1." parallelogram area " the content in the " Outline "(or standard) Central Plains to only as " method ", as a separate geometry content is through a fairly long period of time. Our country over the " Outline "(curriculum standards) for a " parallelogram area " the content of the learning requirements have obvious differences. The new " Outline "(or standard) on research, attention to spatial concept culture, embodies the practicality of mathematics etc. to put forward higher requirements.2. teaching syllabus (curriculum standards) under the guidance of the preparation of teaching materials, in a " parallelogram area " of the content, there were also significant differences, mainly in compiling, introduction, the classroom operation, formula derivation and content presenting differences. Through these differences, can make teaching more calmly analysis and handling of materials.3. current versions of primary school mathematics teaching material " parallelogram area " the content of the exercise design exist obvious differences, mainly for the total amount of different, the different level of thinking capacity. These differences make first-line teachers in understanding of teaching practice there are more thinking, in order to select the more conducive to the students to master the knowledge, develop skills, developing space conception, upgrade the capacity of exercises.4. different materials or a combination of various teaching materials the advantages of teaching design, the teaching goal difference, selection of situational and materials, teaching process and practice design also reflects the difference. The author has selected some typical teaching design, were compared and analyzed, in order to facilitate the comprehensive advantages, according to the characteristics of teaching design. Secondly, the teaching design teaching application also have their own focus, the author of the design of teaching methods to carry on the research analysis, with a view to the class teaching method choice help.