Through the game of touching the ball, I feel the uncertainty initially, and experience that some events are certain and some are uncertain. It is possible for students to experience by touching playing cards. The design of teaching materials is activity-oriented, showing greater openness and flexibility, providing students with more thinking space and more exploration opportunities.
Reflections on the possibility teaching of mathematics in the fourth grade of primary school
1, once in class, it is easy to realize the interaction between teachers and students through the students' "touch and guess the ball" game, thus mobilizing students' interest in learning. Teach students to express the certainty and uncertainty of events with "certainty", "impossibility" and "possibility". It paves the way for new knowledge and plays the role of "guiding the way".
2. For children, the process of collecting data by hands is often a pleasant game. Through their own experiments, students feel and appreciate the possibility of occurrence in the process of personal experience and experience. Cooperative learning can not only give full play to the collective wisdom, but also promote the improvement and development of students.