綜合高中為我國後期中等教育的新學制，為普通高中及一般高職的綜合體，但實施至今存在很多問題，使家長及學生對其仍缺乏信心，其中教學方式、課程規劃、與媒體配合應為問題之一，因而本研究針對綜合高中教師對化學科及生物科的教學現況、學生學習難易度、與電腦輔助教學的需要情況進行調查，研究樣本則選擇南部七縣市所有綜合高中的化學科及生物科教師，以自編問卷進行調查，其結果顯示大多數化學科或生物科教師仍採用傳統講解法，而使用的輔助教學媒體則以VCD或DVD居多，惟使用電腦或網路教學者並不多。在學生學習難易度方面，教師感受到學生們在化學科有58﹪的章節是困難學習的，而生物科則有約三分之一的章節是困難學習的。至於電腦輔助教學需求，化學科某些章節甚至高達75﹪的教師認為有需要電腦輔助教學，而生物科某些章節甚至高達69﹪的教師認為有需要電腦輔助教學，尤其難易度較高的章節，教師大都希望能有相關的電腦輔助教學軟體，來幫助學生學習與理解。

Comprehensive high schools are the combination of the ordinary senior high schools and the vocational high schools, and belong to a new high school system in the post-secondary education. However, there are many problems even they have been practiced for several years that let many parents and students still lack confidence. The problems include teaching methods, curriculum development, and teaching media and so on. Therefore, this study focuses on the current teaching situation, learning degree, and the needs of computer assisted instruction (CAI) on chemical course and biological course of teachers in the comprehensive high schools and goes on for the survey. Two self-developed surveys are developed as the main tools to collect data. All of the teachers who teach chemical course and biological course in the comprehensive high schools in the southern part of Taiwan are samples of this study. The results show that most of the science teachers still apply the traditional teaching method; the major teaching media is VCD or DVD; only a few teachers apply computer or Internet to teach. Regarding to students’ learning degree, teachers consider 58% of the chemical contents are difficult to learn for students; and the one–third biological contents are belonged to the difficult ones for students. And 75% of the chemical teachers think that CAI is necessary to practice on some specific chapters in chemical course, and 69% of the biological teachers do have the same opinions, especially for the more difficult chapters. Most of the teachers hope that the related CAI software can be developed sooner as possible to help for teaching and learning science in the comprehensive high schools.