This study surveys elementary and secondary teachers in Taiwan and compares the findings with other studies conducted in America and Japan. The objective is to explore differences among teachers in Taiwan, Japan, and the United States in terms of their knowledge of, and attitudes toward, aging and the implementation of aging education in schools. Multistage sampling was adopted, with a total of 1038 Taiwanese elementary and secondary teachers sampled. It was found that while knowledge of aging among Taiwanese teachers appears lower in comparison with American teachers, their attitudes toward aging are largely consistent with their American counterparts. In addition, Taiwanese teachers seem to offer just as little aging education in schools as their American and Japanese counterparts. Lastly, Taiwanese teacher attitudes toward aging, rather than their knowledge of aging, correlate closely to their provision of aging education in schools. Educational authorities should, therefore, offer teachers pre- and in-service education on aging or gerontology so as to equip them with the right knowledge on, and positive attitudes toward, aging. By so doing, teachers will be more likely to teach the subject of aging in schools. (Contains 6 tables.)