Craig Dykstra defines a Christian practice this way: “Practices are those cooperative human activities through which we, as individuals and as communities, grow and develop in moral character and substance. (Craig Dykstra Growing in the Life of Faith pg. 69) The 15 practices listed on the left are 'practices' are not an exhaustive list, but seem to represent some of the major "patterns of communal action" that Christians have engaged in. Each of these practices, then, gets concretely applied in various ways - that's what we're trying to do here: apply these practices to concrete situations in our classrooms.
For more on this see the following link or this: "A Theological Understanding of Christian Practices."
In some ways, yes! There are things that we do in our interactions with our students and the way that we teach that already are well-grounded in Christian practices. However, there is a ton of research that shows that 'practices' are more influential than 'Christian worldview' in developing students faith. That is not to say that 'Christian worldview' is bad; it is just one piece of the puzzle.
Sociologist Christian Smith in Soul Searching: The Religious and Spiritual Lives of American Teenagers “Among the more religiously serious American teenagers, religious practices appear to play an important role in their faith lives. For the committed adolescent, religion is not simply a matter of general identity or affiliation or cognitive belief. Faith for these teenagers is also activated, practiced, and formed through specific religious and spiritual practices.” (27)