Studying On Teaching Probability In Senior High School

Random mathematics consciousness is becoming a basic cultivation of people. In the teaching of Probability in senior high school lie obvious inadequacies in students' comprehension of Probability definition for Frequency and Equiprobability models. How to teach the contents of probability on the textbooks at present in common senior high school exactly needs us to study.In advance of reviewing probability for Senior Three students, the author gave an exam of probability. On the basis of analyzing the results, the author carried out a group of teaching strategies, the author reviewed the definition of Frequency by computer imitation trials and Equiprobability models by various Probability models, and distinguished Exclusive Events and Independent Events by examples, and described Variable Distribution by means of various Probability models. Reviewing purposely, according to this dominant clue, we checked reviewing effects for five times. To each exam, we summed up disadvantages and persisted in advantages, succeeding in completing the teaching of probability.Therefore, the author drew some conclusions of probability teaching for Senior high school students. First of all, because the teaching the definition of Frequency and Equiprobability models are basic knowledge of Probability, and they lay a solid foundation for the subsequent studying probability, the method of computer imitation trials in the teaching of Frequency has obvious effect, so does the audio-visual models in the teaching of Equiprobability models. Secondly, the combination in concept and problem teaching can enhance profound comprehension of Exclusive Events and Independent Events. Finally, because Distribution is basic knowledge in teaching probability, meanwhile, the calculation for Expected Value and Variance also are based on Distribution. Thus, Distribution is the most important in teaching them, it needs to give more emphasis.Probability was an indefinite mathematics and it was different from definite mathematics, which took a dominant position for a long time in middle mathematics. To meet the demands of students' age in Senior Two and Three, we shouldemphasize the basic concept of probability and set up probability models as much as possible to explore problems in nature. So the students' Random-Principle would be developed from the methods of teaching, thinking and studying. Only in this way, we can lay a solid foundation for students' further studies.