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Open-source tool to boost STEM graduates

State education officials have a new tool to help them predict which investments will pay dividends as they try to boost the number of college graduates who major in science, technology, engineering, and mathematics (STEM) fields.

Defense company Raytheon introduced an open-source program July 8 that will be customizable for the country’s largest school districts, colleges, and state education systems. The program, called the U.S. STEM Educational Model and supported by the Bill & Melinda Gates Foundation, will help officials analyze how they should allocate budgets that have stagnated or shrunk during the economic recession as they seek to increase the number of STEM-related graduates. The program is available for download free of charge, according to the download site.

The computer-based model will simulate how schools can draw students to STEM fields most effectively–a trend that would bolster the science and engineering workforce.

“It can show a return on investment,” said Brian Fitzgerald, executive director of the Business-Higher Education Forum, an organization that hosts the Raytheon modeling tool. “It can show you in a very dynamic way what the effects of alternative investments might be. … This is a very, very good tool for state-level policy makers who are looking for the most effective investment.”

The program can test more than 200 variables that could better inform policy makers about how programs should be funded. The model measures graduation and dropout rates, gender gaps in STEM fields, teacher and STEM industry salaries, and educator attrition rates, among other factors. Raytheon has used a similar program designed to project outcomes of its weapons production for the U.S. military.

The model recently predicted the long-term impact of California’s decision to create smaller classes by hiring more teachers. Many of the new teachers were underqualified, and California decision makers ultimately abandoned the initiative. Fitzgerald said the new computer simulation was fed information about the California program, and within seconds, it showed the possibility of the initiative’s demise.

“It accurately captured those effects,” he said, adding that the computer-based model will change as the open-source community adds new components. New research and data will be included in the newest versions of the simulation model.

Morton Sternheim, director of the STEM Educational Institute and a physics professor at the University of Massachusetts, said the computer simulation model could supplement a growing excitement about STEM fields among students and parents recently surveyed by the institute.

The survey, conducted during May and June, showed that participation in STEM-related subjects encouraged K-12 students to consider college and what subjects they might major in.

“Whether it’s the answer, I don’t know,” said Sternheim, director of the STEM Educational Institute for 20 years. “But it could be a piece of the answer. It might even make a real difference.”

A central reason the number of U.S. students who graduate with STEM-related degrees is lagging, Sternheim said, is the lack of involvement among students with upper-middle class backgrounds. Students from low-income backgrounds are more likely to focus on fields like engineering and technology, because they know they’ll need a job right out of college, he said.

“The more affluent the kid’s family is, the less likely [it is he or she will] go into STEM,” Sternheim said. “You have to somehow look at these numbers and wonder if it’s more about the environment in which kids are coming from.”

Fitzgerald said Ohio, Arizona, and California are expected to use the modeling computer program within the next year. Development of the program began in 2006, he said, after the Business-Higher Education Forum introduced the goal of doubling the number of U.S. college graduates in STEM fields by 2015.

The U.S. STEM Education Model can be downloaded for free at However, Vensim Simulation Software from Ventana Systems is required to run the tool on personal computers. The Vensim program is available in a free read-only version; if educators want to manipulate the model, they will need to purchase a version of the Vensim PLE Plus software. The Vensim PLE software license costs $169, according to the company’s web site.


STEM Educational Institute

Business-Higher Education Forum

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