Teaching the curriculum of data structure for many years , the author summarized a set of applicable teaching method summarized , of which rehearsing teaching is one of the most effective methods to break through the teaching difficulties 摘要作者经过多年数据结构课程的教学实践，总结出一套较为适用的教学方法，其中演习教学法是突破该课程教学难点的行之有效的方法之一。
So long as we unify the multimedia technology with the traditionaleducational model , in thoroughly studies the teaching material in thefoundation , the union course content and the teaching goal , scientifically develop and chooses the multimedia class , certainly canhold the teaching key point , the breakthrough teaching difficulty , completes the teaching goal well , fully manifests the multimediaassistance teaching the superiority 只要我们将多媒体技术跟传统的教学模式结合起来，在透彻研究教材的基础上，结合教学内容和教学目标，科学地开发和选择多媒体课件，就一定能抓住教学重点，突破教学难点，更好地完成教学目的，充分体现多媒体辅助教学的优势。
The necessity of using the multimedia technology in the course of teaching is discussed in the paper based on the teaching of advertising intention and propagating specialty , which not only can make explanation of teaching difficult point be vivid but - excite students ' study interest to improve their theoretical level and practical ability progressively in easy environment 摘要本文结合广告创意与传播专业的教学实际，探讨在教学过程中使用多媒体技术的必要性既可以使一些教学难点的讲解变得生动形象，同时又可以激发学生的学习兴趣，让学生在轻松自如的环境里逐步提高理论水平和实践能力。
In other words , the reasonable scheme and utilization for time , the high quantity and quality of the lesson content , the teachers and students " property exertion and the achievement of the aim are indispensable for the judgment of the efficiency of the teaching and learning 所谓教学时间的配置，指的是教师根据教学内容和学生状况，确定教学目标和任务，教学难点和重点，选择教学方法?手段及教学风格，并合理分配各教学时段时间的筹划行为。教学时间的利用率指的是实际学习时间与安排学习时间的比率。
