Schoology for my class (best CALL 3)

I have looked for ways to manage my students - LMS - but it's too expensive program and then I gave up searching it. But here is a free sites for LMS, Schoology! - In fact, it's not a traditional LMS, anyway it's a good tool for me.

I wanted my students to study English by themselves at home. So, I gave them some homework but it wasn't work. Because they copied their friends answers. I had a problem to know how to manage my students learning.

Schoology can make us communicate and create various materials for my class. Although I should spend more time to manage my students, but it is meaningful work.