The majority of Chicago Public Schools students in 3rd-8th grade are taking the ISAT test this week, though parent groups who oppose the test say the number of students who have opted out of the test continues to rise. Elizabeth Brackett reports. Watch a web extra video interview with Sarah Chambers, a teacher at Saucedo Scholastic Academy.

The ISAT test is scheduled to begin next week, but some Chicago Public School teachers are refusing to administer the statewide tests. Elizabeth Brackett has the story. Read an article.