If it were only necessary to decide whether to teach elementary science to everyone on a mass basis or find the gifted few and take them as far as [1] ______ they can go, our task would be simple. The public school system, therefore, has no such choice, for the [2] ______ jobs must be carried on at the same time. Because we depend so heavy upon science and technology [3] ______ for our progress, we must produce specialists in many fields. Because we live in a democratic nation, which citizens make the policies for the [4] ______ nation, large numbers of us must be educated to understand, to support and when necessary, to criticize the works of experts. The public school [5] ______ must educate both the producers and users of scientific services. In education, there should be a good balance between [6] ______ the branches of knowledge that attribute [7] ______ to effective thinking and wise judgement. Such balance is defeated by too much emphasis on any one field. This question of balance is involved [8] ______ not only the relation of natural sciences, the social sciences, and arts but relative emphasis among the natural science themselves. Similarly, we must make a balance between [9] ______ current and classical knowledge. The attention of the public is continually drawn to new possibilities in scientific fields and the discovery from new [10] ______ knowledge; these should not be allowed to turn our attention away from the sound, established materials that form the basis of courses for beginners.