I would agree that knowing and aligning the instruction with the learning goal is a key piece. I have seen numerous occasions where things are done because 1. That is what has always been done. 2. Someone found a neat toy to use. or 3. There is a new catch phrase going around. With little or no thought given to what the intended goal of the instruction is and what we would like the learner to know and be able to do. I think it is always important to revisit the question of what is the goal and what is the best way to help the learn get to that goal. The design of the learning expereience on-line or not should address this consideration. So, intended or not, I am glad to see this here and at the top of the list.

I am a believer that the single most improtant thing a teacher needs to know is what the learner already knows. I beleive the saying goes "find that out then instruct accordingly". I have always been challenged to find effieceint methods of doing this, but I think there are number of technology tools that can help to facilitate this process.