The target audience should be defined by the need to define clearly how to use the tutorial with the age of the target audience and how to choose content and plan your teaching appropriately.
Should be targeted by requiring that want to implement an instruction to anyone and prospects that much to choose between the teaching plan for and cope appropriately.
Should the target by the clear that want to use the instruction with the WHO and the target that how old to select and use เนื้หา teaching planning properly.