阅读理解 Not enough American students want to be engineers,mathematicians, or scientists. The Obama administration wants to change that. They are spending money to do it. The government will invest three billion dollars in the education of young Americans in science, technology, engineering, and math. The four areas together are known as STEM. Many jobs in the STEM fields will open in the coming years. The U.S. government's investment aims to increase the number of Americans who can take those jobs. Yet girls appear far less interested in STEM subjects than boys. Only 25% of STEM students are girls. Camsie McAdams from the U.S. Education Department says girls simply do not feel welcomed in STEM subjects. She says young women look at industries such as engineering and computer science and see most of the leaders are men. “We, as women, want to have people that look like us, people that we can relate to. A lot of times what keeps people from entering the field, even when they get the degree, is because they don’t feel welcomed.” Engineer Debbie Sterling invented for girls a construction toy named “Goldie Blox”. She hopes Goldie Blox will help girls develop spatial skills, which help engineers and builders to think about objects in three dimensions(维度））.To interest girls, Sterling created the character “Goldie.” Goldie does not care about beauty or clothes. Goldie tells stories, solves difficult problems and creates imaginary worlds.