TEACHING SCIENCE IN SECONDARY SCHOOLS environment, but the problems, applications, illustrations, field trips, and excursions will be very different. A workbook and a teacher's manual are available that suggest related activities. The workbook should be used by the teacher for suggestions and not as mere busy work for the students. Stu- dents should be encouraged to experiment and read outside the laboratory and classroom; to make collections of plants, butter- flies, insects, rocks; to go on class field trips; visit museums; and make excursions of their own. These experiences provide inter- esting material for oral and written discussion. Aside from the teaching aids suggested in the foregoing para- graphs, the teacher should find help from local sources. The teacher should subscribe to professional magazines and be on the watch for authentic materials in newspapers and popular maga- zines. Radio and screen programs frequently provide interesting and up-to-date science information. Visual aids at the correct level of understanding should be used as freely as they are available. Suggestions for these are found elsewhere in this bulletin. The practices concerning health instruction in Florida vary widely. Special health courses are sometimes assigned to the science teacher, the home economics teacher, or a special health teacher. It is likely that this practice results in a failure to ob- tain good health instruction at all, for all too often the health course is taught in isolation. There are many advantages in the integration of health with science, physical education, and home economics, rather than in presenting it as an isolated subject. Even if a separate course is provided, the teachers of science, physical education, and home economics are not relieved of definite responsibility for teaching the principles of health in every appropriate lesson of their own field. SECTION 4. GENERAL SCIENCE AT THE NINTH GRADE LEVEL The ninth year of science instruction finds a student in the midst of certain psychological changes that are inevitable. Here the student must choose between specialized fields of study, he 20