As no shadow of doubt, it's necessary a good dedication to succeed in any class preparation, no matter how big this challenge will be, but it's important to remember using methodological strategies, otherwise your students will feel that you are simply reading the activity instead of teaching it.
Using methodological strategies is also having a broad vision of the tasks to be developed with your students, and it concerns reading between the lines.
Reading btw the lines for me is taking advantage of certain topics to investigate and evaluate how my student's knowledge is on determinated topics, and it makes a great difference in the class flow. Although, we must be aware of which tasks should be selected to investigate our student's skills and difficulties.
Beforehand, make yourself some questions while preparing or developing a task. Thinking about this, Shavelson and Stern (1981) suggest some topics that must be taken into consideration like:
-Content - the subject matter to be taught
-Materials - the things that learners can observe/manipulate
-Activities - the things the learners and teacher will be doing during the lesson
-Goals - the teacher's general aim for the task (they are much more general and vague than objective)
-Students - their abilities, needs and interests are important
-Social Community - the class as a whole and its sense of "groupness"
"Proper preparation prevents presentation predicaments"