Running your course at a distance doesn't need to be a scary prospect and in fact is easier than using technology in the classroom. You have as much time as you need to setup the systems to do what you want them to do, ask for help and information from others and even make mistakes without anyone watching (in the privacy of your own office/home).
So, let's get to exploring what is available to run your courses at a distance with visible student activity and student interaction for as many activities as possible without redesigning your course content.
One of the simplest additions to your course is the discussion forum.
Anywhere you had a "discussion" in class, copy those questions into the head of a forum conversation, contact the students that they are to add their thoughts and reply to others inside the forum and BAM! online discussion.
In ELF or Moodlinka (or other Moodle system), [Turn editing on] and inside your week or topic, "Add an activity or resource" and choose Forum.
This forum could run for the whole semester if you like with several discussions on various topics, or you could create a new forum for each topics. The choice is yours.
Inside the IS, there is a forum called "Discussion groups".
You can add a "New Thread" (meaning a new discussion) for a single class or the course as a whole.
When you click on "New Thread" (not pictured, after you select a class), simply add your usual discussion questions and any words of encouragement to get students 'discussing'.
There are many activities that you could "announce" as a discussion in the forum for students to find or research and add to the discussion in the forum.
Some simple ideas are:
Firstly, most students have a smart phone in which they are already using:
“Good morning. A fine day after the fogs of the last week. And I see the new film. As yet, I didn’t see and hear it – a great invention of America. I am sure not the last one. If I observe the inventiveness of our modern scientists, I sometimes fancy a much greater invention – to see and hear in the distance without any wires. Just imagine: you could observe, from your place in the sitting room, the jungles of Africa and what the wild beasts are doing there. You could see and listen to the jungles of our human society. Every man then would be forced to be honest and there would be no secret plotting any more of all the wickedness. Wonderful….no?”