Union members are still reviewing the tentative agreement. (firedoglakedotcom/Flickr)

Chicago Teachers Union president Karen Lewis said the union's House of Delegates could vote on Tuesday to end the strike, meaning Wednesday would be the the earliest date 350,000 students can return to class.

"Our members are not happy," Lewis said. "They want to know if there is anything more they can get."

The union and Chicago Public Schools (CPS) came to an agreement on issues such as performance reviews and teacher recall. The standards for teacher evaluations that could lead to firings would be relaxed, and highly-rated teachers could get a better shot at being recalled after layoffs, the union said.

The proposed deal would call for a three-year contract, with an option for a fourth year that the school district and union would have to agree upon. It includes 3 percent raises in the first and fourth year, in addition to 2 percent raises in the second and third year. The increases are a far cry from the 30 percent raises the union initially sought.

Read more of Neon Tommy's coverage on the Chicago Teacher Strike here.

Reach Executive Producer Danny Lee here; follow him here.