The primary school math teacher recruits a case analysis question to find the answer! !

Teacher Zhang's main practice is not to let mathematics live. It is purely imparting knowledge, and students don't understand it because it is too abstract. Teacher Li's practice, combined with the actual life, from concrete to abstract, cultivated students' ability to abstract the general situation, teachers' clever design, students' easy learning, and integrated complex mathematical problems into concrete life examples, which deepened students' understanding and achieved the goal of "knowing why and why".