Most plumbers, pipefitters and steamfitters go through a four or five year apprenticeship program, which includes studying math, physics and chemistry, according to the Bureau of Labor Statistics (BLS). Registered nurses, by far the fastest growing STEM job that does not require a bachelor's degree, need to take courses in anatomy, chemistry and microbiology.
Jonathan Rothwell, associate fellow at the Brookings Institution and author of the report told 24/7 Wall St., "the course requirements for some of these jobs [include] things like electronics, physics, engineering, technology. There's usually some math requirement too." These workers, Rothwell added, also "have longer periods of on-the-job training" than many jobs that require a college degree.
Many sub-bachelor STEM jobs have grown fairly quickly. According to Rothwell, there has been strong growth in health care and computer systems occupations, while production occupations have been shrinking. According to BLS projections, from 2010 to 2020, the numbers of registered nurses and computer systems analysts will rise 26% and 22%, respectively. Meanwhile, the number of workers employed as machinists — or in similar occupations — is expected to rise just 7%