Before we go any further, click on the link for a short post explaining the basic differences between declarative knowledge and procedural knowledge.
This is my reply, which addressed the issue of declarative knowledge vs. procedural knowledge:

Language learning in a way is like a time bomb.
2. Certain structures will take a long time to cross over into spontaneous communication (i.e., to go from declarative knowledge to procedural knowledge). Period. The teaching of grammar (with a view to proceduralization), in that sense, is more like a time bomb rather than fireworks – in other words, it doesn’t explode as soon as it’s set off. We may try to speed up the process, but students will only use the “new stuff” (i.e., turn declarative knowledge into procedural knowledge) when they’re developmentally ready to. Now, if you work for a school that operates with a set syllabus, a coursebook (to be covered in X hours) and a series of achievement tests (on the basis of which pass/fail decisions are made), this whole discussion on declarative knowledge may sound really far-fetched and impractical. And you know what? I don’t blame you.

Hi, Luiz
I really like reading the papers you wrote in your Lancaster days. They are so thorough and thought-provoking. I can almost visualize you talking in front of an audience from the way you put your points across in writing.Love it.
More than that, the more I read what you write and research the more I feel that we have been baffled by the same things!
I have also read a lot about tasks, different types of tasks,different definitions and realized that anything can fit a task description given by the different linguists you mentioned. Not much help.In the end, we will rely on our classroom experience and keep doing what seems to get Ss engaged in.
At this point in time, I try to devise tasks which seem to me to have the potential for the practice of certain patterns, structures, lexis, whatever is in the coursebook or that I feel Ss could be interested in talking about.Whatever language emerges from the task is material to be worked on later,if ss were engaged in the task. Extensive monitoring while the task is rolling is key, I believe. A thorough wrap up stage where language actually produced by Ss is noticed, stretched, reworked is the forms-focused moment I feel helps in developing more awareness and more accuracy in the future. This does not mean that I think Ss have 'acquired' or 'learned' what was noticed and stretched, or whatever pattern the task was designed to tackle. It means that Ss will probably be more likely to notice these patterns outside the classroom or when they feel the need to use this language.At the end of the task they will still be a long way from using that language spontaineously(spelling?), but will perhaps be more equipped to keep noticing similar patterns in further input.
I also try to come up with tasks where ss have to talk to many people about the same things ( the recycling, redoing step which can be difficult to carry out on a regular basis because of so many time constraints)so that we have time to work on language output( which more often than not is not the language we started out with, language we had planned to practice, but what the heck, it's language anyway and there will always be so much we can work with after a task is performed)
I read someone who said: 'Today I taught the passive voice and this student came to me and said; what a great class on phrasal verbs! Now I have to plan a class on phrasal verbs so that he learns the passive voice!
If Ss are engaged, if they talk, if you listen carefully and manage to highlight a few points, the mission will have been accomplished for the day.
Um beijo grande
Cris
Oh, Luiz,
thank you very much for this special reply!
I loved reading all that!! and thank you also for sharing your essay on task-based learning! I haven't read it yet, but I am going to…for sure, as soon as I have some time!
I think I have to think a little about what you wrote before I say anything else rsrsrs
thank you very, very, very much!
beijos
Cris,
Thank you for your kind words and your thoughtful post. I especially like:
"Extensive monitoring while the task is rolling is key, I believe. A thorough wrap up stage where language actually produced by Ss is noticed, stretched, reworked is the forms-focused moment I feel helps in developing more awareness and more accuracy in the future."
I couldn't agree more. Your comments reminded me that there are two dimensions to the whole thing: design and implementation and, really, it's probably the latter that will make all the difference at the end of the day, especially because a lot of what will emerge cannot be predicted, right?
Laís,
Thank you for following the blog and for your kind words. I mean it.