DeKalb County Commissioner Larry Johnson will host an open house of a new science, technology, engineering and mathematics – or STEM – center at a county recreation center Monday night.

The STEM center features free tutorials and online programs for children and adults at the county’s Exchange Park rec center, 2771 Columbia Dr., near Decatur.

The open house runs from 6:30 p.m. to 7:45 p.m. Monday at the center.

More information: 404-371-2425.