In 1939, the World's Fair was held in New York City. High school students from around the country shared their science projects at the World's Fair. Many of these science projects provided hands-on learning.
As a result of these exhibits, a transformation started taking place in science education in the 1940s. Science education became more progerssive as part of New Deal legislation. Science education started focusing more on the practical applications of science and how it could be used in industry and to change our society. Science also was to be taught at all levels of education.