The blank dialogue is a very "natural" teaching approach. Something intuitive about it. I used it in my early days of teaching - just pausing a dialogue on cassette tape and asking students to respond. You had to get skilled with using those big buttons! That is what being a teckkie used to entail!
What's a teaching recipe? It's an idea teachers can use to make a lesson. Short or detailed. Add your own and help out your fellow teachers!