Be sure to consult the Help screens on the Web Interface, or download the User's Guide. The education database may be searched free on the Web. Be sure to check the Help screen for good research advice. To find journal articles, you need to know the title of individual articles. Library catalogs give names of journals, but only databases index the contents of journals, i.e. the articles inside.
Some databases are specific to a subject such as psychology or education.
Others are more general, such as Expanded Academic Index. All have slightly different search engines, but the basic concepts of searching are the same from one to the other. Be sure to consult the help screens for search tips. A beginner's guide to searching library resources.