The Establishment And Practice Of Junior High School Biology,genetics And Productive Development Of Assesment Tools

The junior middle school biology, the reproductive development and genetics is one of the important contents in junior school biology. In the current country junior high school biology textbooks in junior highschool biology,reproductive, developmental and genetic feature mainly includes two parts: one part is the biological reproduction, the other part is the genetic variability of biological. In the junior middle school biology knowledge, the junior high school biology, reproductive, developmental and genetic feature is the main framework. With such an important position in junior high school biology and genetic, reproductive development, For just contact the biology of junior middle school students, junior high school biology, developmental and reproductive genetics knowledge to grasp the situation accurately and scientific evaluation is particularly important. Previous studies, making few using IRT theory in junior high school biology, the reproductive development of assessment tools and genetic feature, this paper uses Rasch model in IRT theory, through the analysis of comprehensive index to test the reliability and validity of the tool, to compile a set of real measure of junior high school students in biology reproduction, development and genetics ability assessment tools, at the same time, the application is in practice.This paper on the basis of compulsory education biology course standard for biological reproduction, growth and genetic feature requirements, establish evaluation indexdimension, until the specific projects; then, the author preliminary assessment tools will be a small range of the test, through the test of Rasch model, some project will be amended.Finally, the author selected eighth middle school of Pulandian city of two classes:class two and class five,the preparation of a good test should be used in practice.The analysis results show that, the overall level of the students of class two is higher than the class five, consistent with the known conditions. Therefore, the development of assessment tools and genetic project designed in this research for junior middle schoolbiological reproduction, can be very good to test the students for the project level.so, the evaluation tool is practical and reliable.