[MrVandemar]

Writing 'C' programs on paper with a pen is actually a good way of learning for a certain percentage of students. Writing with a pen is a different cognitive activity than typing, and can aid in reinforcing knowledge.

So, one way to approach it would be to set the students to solve a task, say, one of the sorting algorithms. They can do this however they like.

Then in class you get them to write the same algorithm for a slightly different application thus (a) re-inforcing the algorithm, (b) demonstrating more than one application, and (c) pinpointing people who copied and pasted code without understanding and internalising the code.

Our 'C' teacher used to do this all the time (even before the internet) and when we got into exams, we did extremely well on them because we were copying out algorithms we knew off by heart and applying them to the exam questions.