The creation of problem situation s

The creation of problem situation should also follow certain gradient principle. Here the gradient principle refers to the creation of problem situations should be from shallow to deep, step by step, so that it is in line with the cognitive law of students. Under the guidance of the gradient problem situation, students can melt into the situation naturally, actively acquire knowledge and offer their own understanding of the problem. When some problem situations are too unfamiliar or contain a lot of information, teachers can also prepare the appropriate foreshadowing or tips in advance, so that students can more smoothly into them.