CHICAGO – Thousands of striking Chicago public school teachers and their allies packed a city park Saturday in a boisterous show of force as union leaders and the district tried to work out the details of an agreement that could end a week-long walkout.

Pushing strollers, toting signs and towing wagons of children, thousands of red-shirted teachers cheered and chanted as speaker after speaker urged them to stand firm until they have a deal in writing. They told the teachers that their strike was a symbol of hope for public teachers and other unions that have been losing ground around the nation.

"I'm pretty confident that something will come together that both sides will agree on," said Ramses James, a sixth-grade math teacher. "I believe this is a very strong turning point when you have so many people coming out to fight alongside [the teachers union]. That means a lot."