利用反馈原理,优化练习设计

练习是一种有目的、有指导、有组织的学习活动，是掌握知识、形成技能、发展智力的途径．练习是新授课的延伸和继续，是巩固新知发展思维的重要途径．练习的信息反馈，可以为教学工作提供可靠的信息；一方面暴露了平时教学中的薄弱环节，另一方面提高了相应的教学内容和一定的教学目的，这样才能有的放矢．根据不同的目的，可将反馈分为基本反馈题、比较反馈题、变式反馈题、改错反馈题、综合反馈题等．

A Study on Influence of Market Information on Clothing Enterprises and Countermeasures

Due to quick changes of the market and long supply chain, it is difficult for clothing enterprises to make timely and correct production adjustment. According China＇ s data, research of this paper indicates that the correctness of clothing enterprises adjustment is only about 43%. Some positive actions can improve the condition, such as set up the quick feedback way of the market information, improve information sharing by cooperation mechanism of upstream and downstream in the industry or cross industry, and strengthen the regulatory mechanism of production.