Olivia Lundelius, a student at Great Neck South High School, is using her computer-science skills to bring technology courses to Levels. Lundelius planned and taught a five-session introductory course to Java during the spring. This summer, she’s teaching a four-session class on Android app making, using open-source software from MIT. Lundelius is developing her technology skills further with an internship in the computer-science department of Columbia University. Check www.greatnecklibrary.org/levels to learn about more computer classes at Levels.