The Comparative Study Of Chemistry Textbook Exercises Of Junior Middle School Between China And The United States

Textbook exercises after class is an important part of teaching material.Textbook exercises after class can not only help students consolidate and testing knowledge,can also guide teachers to improve teaching methods and adjusting teaching schedule.Textbook exercises after class is one of the teaching material compile level measurement.Textbook exercises after class is good or bad influence on students’ learning and teachers’ teaching and teaching material compilation.The research object of this paper is the junior middle school chemistry teaching after class exercises,which are junior high school "chemical"(hereinafter referred to as the "Chinese version")and the United States chemical part of the junior middle school teaching material "scientific explorer" mainstream "material" and "chemical reaction"(hereinafter referred to as the "American version")under the background of the same content exercises after class.Through to the junior middle school chemistry teaching materials of China and the United States exercises after class presentation,cognitive level and difficulty factor comparison found: on the number of textbook exercises after class,"the American version of" more questions;In textbook exercises after class types,the junior high school chemistry textbook exercises after class is given priority to with "question;in terms of cognitive level," Chinese version "is given priority to with" memory ","American version" give priority to in order to "understand".Through the junior middle school chemistry teaching materials of China and the United States after class exercises difficult factors comparison found: "background" level,"the Chinese version of" than "American edition" pay more attention to set of homework problems background;" In terms of math skills,the American version is more lightweight than the Chinese version.In terms of reasoning,the Chinese version is more reasoning than the American version.In terms of knowledge level,the American version is more than the "China edition".In terms of openness,the American version is more open than the Chinese version.Macro micro operator "level," the Chinese version of "homework problems than" American edition "pay more attention to the transformation of a" macro micro operator "thinking.Based on the difficulty factor calculation,on the basis of" Chinese version "the homework problems of comprehensive overall reflect the average difficulty is bigger than" American edition ".From the education idea,the education of natural science foundation of China and the United States,chemistry curriculum standard and teaching method of junior middle school chemistry teaching materials of China and the United States exercises after class has carried on the analysis of the causes of differences,and proposes the corresponding experience and prospected.