About the Program The Teaching English as a Second Language (TESL) certificate program is a full-time graduate program designed for students who wish to teach English. Berklee Online Free Courses Download 1,250 free online courses from the world’s top universities — Stanford, Yale, MIT, & more. Over 40,000 hours of free audio & video lectures. Berklee is the premier music college and performing arts conservatory. Degree programs in Boston, Mass….