Professor He Kekang put forward in On Information Technology and Curriculum Integration: "In the information age, teachers should play a leading role in creating situations, providing information resources, organizing cooperative learning, guiding inquiry learning and designing autonomous learning strategies." In primary school mathematics teaching, we should properly apply modern information technology into subject teaching, create a humanistic scene of teaching with concrete images, words, sounds and images, make abstract teaching content concrete and clear, make students' thinking actively participate in teaching activities, make students pay attention to practical operation, scientifically memorize knowledge, help students to play their initiative and think positively, and change teachers' teaching into students' learning, thus improving teaching quality. Mathematics teachers should study how to use modern information technology to optimize classroom teaching and integrate modern information technology into primary school mathematics teaching from the perspective of their own disciplines.
First, use modern information technology to create a learning situation for the introduction of new courses and stimulate students' interest.
Once a child is curious about something, he will have a strong thirst for knowledge. In the new curriculum teaching, modern information technology is used to create a learning scene in which students enjoy and love learning, so as to quickly focus students' attention on the content of classroom teaching, stimulate students' strong interest in learning and strong thirst for knowledge, and make students' learning state change from passive to active, and master knowledge in a relaxed and happy atmosphere.
I listened to the teacher's lesson "The Basic Nature of Fractions". She used the courseware to play an animated story of "A Fan Divides Gold Bars". First, she divided a gold bar into two parts evenly, and let one fan take 1, and one fan didn't want to take it. He felt that taking 1 was too little: she divided the gold bars into four parts on average, but Afan still didn't want to take it. Finally, divide the gold bars into 12. This time, Fanti happily took 6 shares. Ah ... the students laughed. The teacher asked: Why are the two generations so happy now? ..... Like this, playing a wonderful story and introducing topics will make the whole class active at once, which will not only greatly stimulate students' interest in learning and attract students' attention, but also attract students' hearts to teachers all the time, so that the teaching process can go smoothly and improve teaching efficiency.
Second, the use of modern information technology can effectively realize centralized teaching, highlight key points and break through difficulties.
Multimedia and network technology fully embody the characteristics of modern information technology, such as concrete image, dynamic and static combination, rich sound and emotion. Therefore, the proper use of modern information technology can turn abstraction into concreteness, arouse the synergy of students' various senses, and solve the content that teachers can't explain clearly and students can't understand, so as to effectively realize intensive reading, highlight key points and break through difficulties.
For example, in explaining the lesson of "area of a circle", in order to let students better understand and master the difficulties in the derivation of the formula for calculating the area of a circle, I use the courseware to cut and spell animation vividly, divide the circle into two equal parts *** 16, and then stagger the two parts through animation to make an approximate rectangle. Let the students intuitively realize the process of turning a circle into a rectangle, and then let the students cut it themselves. Finally, they realized that the approximate rectangular area was completely equal to the original circular area. Guide the students to observe how this circle is transformed into the nearest rectangle. Then, 32 and 64 clip-and-paste animations were displayed during the vivid activities. Ask the students what else they have found. What is the relationship between the length and width of this approximate rectangle and the circle? Thus, the area formula for finding a circle is derived. Let the important and difficult points of this class break through easily. It greatly improves the teaching efficiency and cultivates students' spatial imagination.
Third, use modern information technology to adjust learning mood and stimulate learning interest.
Psychology shows that the duration of primary school students' intentional attention in class is short, generally 8- 10 minutes. In addition, classroom thinking activities are tense, and students are prone to fatigue, distraction and reduced learning efficiency after a long time. At this time, we should make proper use of the advantages of modern information technology to stimulate students, attract students, create new excitement, stimulate students' thinking motivation, and keep students in the best learning state. For example, in the class of "the meaning of comparison", a bright red flag 3 meters long and 2 meters wide appeared on the screen of the classroom. By comparing the two quantities, the students have learned what is called "ratio", mastered the names of various parts of the ratio, and quickly learned to calculate the ratio. If they practice repeatedly, the students seem a little tired. At this time, I immediately opened the "Tiananmen National Flag" webpage, and a bright five-star red flag fluttered in Tiananmen Square. This is a special kind of national flag. Who can find out how long and wide it is? As soon as the students listened, they became interested and rushed to surf the Internet. Finally, let the students find that it is 5 meters long and 3.33 meters wide. At this time, students are very curious. Some students are talking about the aspect ratio of this national flag, some students are calculating the aspect ratio, and some students are discussing and comparing the national flag of our school. Class is over, still talking.
Fourth, using modern information technology, let life enter the mathematics classroom.
Mathematics originates from life, and there is mathematics everywhere in life. In order to let students learn useful mathematics. Using modern information technology, aim at the best connection point with students' life experience in teaching, build a bridge, make mathematics knowledge lively and interesting because it is close to life, let students feel the life-oriented mathematics, look at the surrounding life with a mathematical eye, enhance students' mathematics consciousness, cultivate students' interest and accomplishment in mathematics, and improve their practical application ability. With the help of modern information technology, students can design familiar, interesting and practical life materials. For example, I listened to a fifth-grade "math activity class" and the video player visited "Guangzhou Oriental Paradise". 980 students and 38 teachers took part in this activity. Ticket price: adult tickets each 10 yuan, student tickets each 5 yuan, group tickets for more than 30 people can be purchased, and group tickets each 6 yuan. Please design the most economical ticket purchase scheme. The students had a heated discussion and put forward their own design scheme.
Create life scenes and highlight the dominant position. Combine the content of teaching materials with life scenes organically, make mathematics knowledge a reality that students can see, touch and hear, make mathematics close to life, and let students truly realize that life is full of mathematics. For example, I have heard that when the first-grade teacher teaches Ji He Ji, students are asked to simulate the scene of people queuing to buy tickets, turning the still picture into a vivid scene. In the lively and interesting life, students have deepened their understanding of cardinal numbers and ordinal numbers and learned to deal with problems in life. Integrate information technology into primary school mathematics teaching, make full use of various information resources, and let life enter the mathematics classroom.
In short, we should integrate modern information technology into primary school mathematics teaching, play its leading role, create vivid life scenes and stimulate students' interest in learning. Provide abundant information resources, free students from tedious study, form a learning atmosphere of cooperation, communication and active exploration, improve classroom teaching efficiency, promote the implementation of quality education, optimize classroom teaching and enhance teaching effect. So as to effectively cultivate more cross-century innovative talents.