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Talking Math: WPI Researcher Neil Heffernan Leads Effort To Develop AI Math Tutor

WORCESTER, Mass. , April 24 /Businesswire/ - Worcester Polytechnic Institute (WPI) researcher Neil Heffernan has been awarded a three-year grant from the U.S. Department of Education’s (DOE) Institute of Education Sciences to develop an artificial intelligence (AI) tutor that can help middle-school students learn math while doing homework.

This press release features multimedia. View the full release here:

WPI Professor Neil Heffernan (Photo: Business Wire)

WPI Professor Neil Heffernan (Photo: Business Wire)

Under a cost-sharing agreement, the DOE’s Institute of Education Sciences will contribute $3,749,600, or 90.89 percent of the funding, to the $4.1 million project, and WPI will contribute $375,815, or the remaining 9.11 percent. The project will integrate the AI tutor into ASSISTments, a free digital learning platform that has been used by more than 1 million students across the country and was developed by Heffernan and his wife, Cristina Heffernan, a former math teacher. The project aims to address the needs of students who have fallen behind in class but cannot afford private tutoring services.

“Tutors are very effective at helping students learn math and succeed in class, but the cost of private tutoring services is beyond students from low-income backgrounds,” Neil Heffernan said. “This leads to a persistent learning gap between lower-income students and students from families that can afford tutoring. A free AI tutor that students could access after school while doing homework would help address this gap and enable lower-income students who have fallen behind in class to catch up to their peers, be more engaged with their lessons, and succeed as they learn the concepts needed to advance to higher-level math.”

Heffernan, the William B. Smith Professor of Computer Science and director of the Learning Sciences and Technologies Program at WPI, will lead a team of psychology and learning science researchers, teachers, and education experts to develop CAIT (pronounced “Kate”), a Conversational AI Tutor that they will integrate into ASSISTments and then test in classroom settings. ASSISTments previously has been shown to positively impact students’ math achievement and educational equity in an independent evaluation of nearly 6,000 middle-school students in North Carolina.

In addition to Heffernan, WPI researchers involved in the project will include Assistant Professor Stacy Shaw of the Department of Social Science and Policy Studies, Computer Science Research Scientist Li Cheng, and Assistant Professor Adam Sales of the Department of Mathematical Sciences. The WPI team will work with the ASSISTments Foundation, an independent nonprofit organization founded by the Heffernans to manage and market the platform. WestEd, an education research organization, will evaluate the use of CAIT in educational settings.

The project is possible because of recent advances in generative AI, a type of artificial intelligence that uses complex algorithms and is trained to find patterns in data in order to create new material. CAIT will have a “conversational interface” powered by natural language processing, a field of AI that enables machines to understand and generate human language. As a result, students will be able to speak or write questions for CAIT, and CAIT will respond with personalized replies. By monitoring students' work, CAIT will be able to identify challenges each student is encountering and provide encouragement and additional problems for students to solve.

The researchers will develop CAIT so it can run on mobile phones and low-cost computers with Internet access, much like the devices already used in schools. They also will develop CAIT to interact with students in encouraging, empathetic, and supportive language.

“We are excited to work with WPI to implement generative AI into ASSISTments in such a meaningful and safe way," said Cristina Heffernan, executive director of the ASSISTments Foundation. “Positive experiences with math can boost students’ self-esteem and motivate them to keep going. This transformative solution will enable students to learn their homework instead of just ‘doing’ the problems.”

About WPI

WPI is a top-tier STEM-focused research university and a recognized pioneer and global leader in project-based learning. Founded in 1865 on the principle that students learn most effectively by applying the theory learned in the classroom to the practice of solving real-world problems, WPI’s continued mission is to transform lives, turn knowledge into action to confront global challenges, and revolutionize STEM through distinctive and inclusive education, projects, and research. WPI’s project-based curriculum engages undergraduates in solving important scientific, technological, and societal problems throughout their education and at more than 50 project centers around the world. Today WPI offers more than 70 bachelor’s, master’s, and doctoral degree programs across 18 academic departments in science, engineering, technology, business, the social sciences, and the humanities and arts. Its faculty and students pursue groundbreaking research to meet ongoing challenges in health and biotechnology; robotics and the internet of things; advanced materials and manufacturing; cyber, data, and security systems; learning science; and more.

STORY TAGS: Photo/Multimedia, Funding, University, Technology, Primary/Secondary, Artificial Intelligence, Education, United States, North America, Massachusetts,


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