The District of Columbia Public Library [DCPL] has a wealth of resources available for free. The only requirement is that you/your student get a library card so they can access the online [databases, music files, e-books, etc.], multimedia [cd, dvd, playaways, books on tape, etc.] and traditional print resources.
The closest branch of DCPL to Alice Deal is Tenley-Friendship Interim branch. If you want to find the branch closest to your home, use the Find a Library feature on the DCPL website.
Location and Hours of the Tenley-Friendship branch:
4450 Wisconsin Ave. N.W.Washington, DC 20016
Other DCPL resources:
Homework Help: DCPL offers homework help online everyday from 4pm to midnight.
Databases: DCPL subscribes to a wide variety of online databases - they are great resources for NHD and science fair projects!