The funeral for 17-year-old Chris Wormely was planned at Sunrise Baptist Church on the city's South Side.
Wormely was stabbed to death March 1 at an alternative school called Infinity, located at 102nd Street and Crandon.
Another student also was wounded in the incident.
Their classmate, 17-year-old Christian Gonzalez , is charged with first-degree murder and attempted murder.