Northwest Technical Institute (Springdale) In order to serve the needs of the community, the Adult Education Center has an open enrollment policy. Interested adults who are 18 years of age or older may enroll on Monday through Thursday from 8:00 a.m. to 7:00 p.m. at the Center. ESL and Citizenship students are assessed with the BEST Literacy Test and placed in the appropriate classes as determined by their scores. Classes are available at the Center: 709 S Old Missouri Rd, Springdale, Arkansas. All classes are free.