The approach is a response by some small colleges to a worsening enrollment crisis, mounting competition from educational providers that focus mainly on job skills, and increasing skepticism among consumers that an investment in a higher education will pay off. The technologies that took a huge leap forward during the pandemic — most notably, the delivery of education online — course sharing generally teams up universities and colleges that have extra space in online classes with partner institutions that want to add new programs but can’t afford the time or money to develop them alone.