Abstract Contraposing the universal tendency problems“mechanical memorization of problem solving steps,slack in exploring the deep reasons behind the problem solving steps,equaling the chemical problems with mathematical calculation”in learning of“calculation of mass of impurity substance in chemical reaction”,using layers of in-depth questions to inspire students' deep thinking and promoting students to chain and structure the knowledge already known,at the same time,visualizing the inner chain of thinking and building the general thinking model of problem-solving step by step,purposing to promote the deep apprehending of chemical core concepts and principles. On the basis of preliminary model building,further guiding the students to build the thinking model of“calculation of mass of impurity substance in chemical reaction”on the specific problems,and gradually forming the solution schema of “calculation of mass of impurity substance in chemical reaction”.The investigation data shows that the deep thinking ability and problem solving ability of students are effectively developed through constructing and applicating the thinking model.
LI Hao-Jie. Guiding the Construction of Calculative Thinking Model with In-Depth Questions: Calculation of Mass of Impurity Substance in Chemical Reaction[J]. Chinese Journal of Chemical Education, 2021, 42(9): 28-34.
