If the Christian concern for the world is to have any reality to it, it must, of course, express itself in concrete activity on behalf of specific purposes. (religion-online.org)
We provided several concrete activities with opportunities for participation, discussion or feedback to help make the learning more real. (nasje.org)
It is easy to think of concrete activities when looking for good habits to form, but more abstract ones like creativity can be formed too. (theeverygirl.com)