TEACHING THE HISTORY OF SCIENCE 61 tists still face difficulties and GALLILIO must study, work, and sac- rifice for the advances they hope to make. And we find that the future holds great promise for the ones willing to accept its challenge. Biographies and historical materials should be studied all through the year. The great contributions made by w the early scientists will have DID a vastly greater interest for students when they know IT about the lives and circum- 11 stances under which these scientists labored. Pictures .. of many scientists are avail- able, and the teacher should have a large number of them. For teaching the histori- cal background of science there are many aids, includ- ing the following: (a) Bulletin board - catchy pictures, short articles, small objects, clippings, drawings, reports, and other commendable work by students. (b) Library-biographies, true science stories, science fic- tion, encyclopedias, magazines, and booklets. (c) Audio-visual aids-slides, film strips, films, opaque projections, and recordings. (d) Programs-reports and demonstrations, book reviews, "lecturettes," pantomimes, and plays.