In Kentucky, teachers decried changes to their pensions, after state lawmakers tucked those reforms into another bill about sewage and passed that bill last week.
And in Oklahoma, protesters rallied for higher teacher and support staff raises, as well as increased funding for education -- which has plummeted by 28% over the past decade, the state teachers' union said.
Jenna Geresi, a first-grade teacher at Jarman Elementary School in Tulsa, Oklahoma, carried this sign that read “iF u keep hurtin EdukAshun mor sines will Lok like dis.”
Melissa Knight, who teaches art at Ardmore Middle School in Oklahoma, demonstrated outside the state capitol with a sign that read, "My 2nd job paid for my sign!"
Teachers protested at the state capitol, called for higher wages and demanded "respect."
Teachers reminded lawmakers that they also vote.
Oklahoma teacher Dionne Liebl, speaking to a crowd gathered at the state Capitol, said educators were protesting today for additional funding and resources for their students.
"Why are we here today?" she asked. "We are here today because our schools, our children need us."
Liebl, an English teacher at Deer Creek High School in Edmond, Oklahoma, was one of 12 finalists for teacher of the year.
She urged Oklahoma teachers to remain united.
"This isn't about one organization or another," Liebl said. "This is about students, our kids, the very future of our state. That is why we are here."
So, the Stillwater Junior High history teacher got on Facebook and typed in "Oklahoma walk out" to see if there were any similar movements planned in his state.
"Nothing popped up and I thought 'Why not be the guy to make the group?' When I woke up the next morning, there were 21,000 members," said Morejon, 25, who's also a baseball coach at Stillwater Junior High.
Teachers across the state have flocked to Oklahoma City today, saying concessions made by lawmakers last week aren't nearly good enough to support the future of education.
Oklahoma is among the bottom three states in teachers' salaries, and until Thursday, had not received a state raise in a decade.
OEA president Alicia Priest called it a "good starting point," but not enough.
Brandon King and Zach Verdea, student journalists from the University of Oklahoma, shot this video of Monday's protests at the state capitol in Oklahoma City.
King said Regan Killackey, a teacher at Edmond Memorial High School in Edmond, Oklahoma, held his English literature class at the protest.
Allyson Kubat, an Oklahoma teacher who is protesting today for higher wages and school funding, also works as an event planner, Postmates driver, and sells health care and beauty products.
Being a surrogate, she said, "definitely helps lift a burden" for her family.
"It's not all about the money, obviously. But I do need the extra income, yes, too help pay some of the most basic bills," Kubat said.
Tens of thousands of Kentucky and Oklahoma teachers ditched classrooms Monday to rally at their state capitals, demanding more education funding for students.
But they're not the only people rallying at the the two capitol buildings. Some of their students are there, too.