High school students from a Massachusetts city marched on Beacon Hill on Thursday.
Students from Brockton High School were demanding lawmakers re-write the state's school funding formula.
The spending plan includes $4.9 billion for school funding and $1.1 billion for additional aid to cities and towns.
Students, parents, and teachers said the current formula is unfair to schools, especially in larger cities.
They added that it does not sufficiently take into account certain costs such as special education and English-language learning.
Students said larger cities get less state funding than it deserves, and repeatedly face budget cuts and large-class sizes.
"Who's going to concentrate and focus? How? How can you when there's more than 35 kids in a classroom? How do you engage all the material that you need?" asked Brockton High School student, Erika Monteiro.
The students support a bill that was debated Thursday afternoon in the state senate that would re-write the funding formula for the first-time since 1993.
Experts said it could also cost the state and local communities about $1.2 billion per year.
The senate is scheduled to begin debating the bill on May 22.
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