Education game developer Matific has raised $45 million from investors and, according to a company statement, will use the new funds to increase research and development activities in Israel.

Matific is a series of math video games developed by Slate Science. To date, 15,000 teachers use the games aimed at kindergarten through sixth grade to add a bit of fun to math. ISRAEL21c included the Matific series in a recent article on best Israeli games.

“Matific appeals to children’s love of playing games. By making math interactive and hands-on, children learn the important fundamentals and enjoy the process of learning more. We’re proud of the product we’ve made and even more proud of the children who are learning because of it,” Guy Vardi, CEO of Slate Science, said in a statement.

“The current investment provides Matific with even more growth opportunities and allows us to expand our R&D center and global sales team,” said Gil Almog, chief operating officer and the managing director of the Israeli office.

Slate Science was founded 2012 and the Matific website and apps were launched in late 2014.