More than 25,000 parents, students and educators are expected to converge on the Oklahoma Capitol on Monday to rally for more money for public education. Organizers hope to persuade legislators to reverse years of cuts to the state’s schools, said Linda Hampton, president of the Oklahoma Education Association, one of the rally’s sponsors. Many districts are giving teachers leave — on a school day — to attend. If the turnout is as high as expected, Monday’s rally would be the largest at the Capitol in nearly two decades…