On Nov. 26, Governor Charlie Baker signed into law the largest reforms to Massachusetts public school system since 1993. Education reformers praised the bill for promising to inject $1.5 billion into the state’s schools, but the funding for the bill is expected to come from future tax revenues and the hope that the legislature continues to allocate funding for schools in future budgets.

Former Massachusetts Secretary of Education Paul Reville praised the bill on Tuesday, and said he had faith that the legislature will hold true to its commitment.

“I like the fact that the legislature has committed itself, and it’s committed itself to filling a yawning gap that had been developing really since education reform was enacted that needed to be rectified,” Reville said during an interview with Boston Public Radio. “I am concerned about how we’re going to pay for it, but I assume that the legislature, in its wisdom, wouldn’t have enlisted itself to this commitment if it didn’t think realistically we could do it.”

Reville said his primary concern is whether or not school districts will spend the money responsibly. He said that the bill will give some districts broad leeway to use their new funding, and that it could be easy to spend it on untested programs rather than improving schools with policies that have been shown to work.

“I’m just worried that in a rush to spend new money they may not be as thoughtful or as evidence-based as they ought to be in terms of looking at you know what’s proven to make a difference,” Reville said. “There are lots of ways to waste money in education, so I hope that school committees and superintendents and principals are looking closely at what’s proven to work within our field and spending the money wisely.”