What should be changed is supposed to define the target group must be given clear, if you want to be using the teaching with the age of the target audience and how to choose content and plan your teaching appropriately.
What will change the most. 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.
What should change the most. The target is to make clear that by the need to use the instruction to anyone and target that how old to select and use เนื้หา teaching planning properly.