求翻译：阅读和钻研教材，对教师全面深入地把握教学内容，增强多媒体教学的目的性，优化多媒体教学设计，确保教学信息传递的科学性和思想性，具有重要的意义。是什么意思？

Depth reading and study materials for teachers to grasp the teaching content and enhanced multimedia teaching purposes, to optimize the design of multimedia teaching, to ensure the delivery of teaching information science and thoughtful, and has important significance.

Read and study materials for teachers, and in-depth and comprehensive teaching content to take advantage of the enhanced multi-media teaching purposes of optimization, multi-media teaching design to ensure that teaching the science of information delivery and thoughtful, it is of great significance.

Reading and the study teaching material, thoroughly grasp the course content comprehensively to the teacher, strengthens the multimedia teaching the sense of purpose, optimizes the multimedia teaching design, guarantees the teaching information transmission the scientific nature and the ideological

Reading and studying the material for teachers and thoroughly grasp teaching content, enhancing the purpose of multimedia teaching, optimized design of multimedia teaching to ensure scientific and ideological teaching information transmission, have important significance.

正在翻译，请等待...