Question 1: The first good volume sprint 100 points. The fifth grade, the fourth unit of mathematics, the meaning and nature of the score. Learning content: Understand the meaning of fractions-on pages 85-87 of the textbook, do a topic and practice 18 1-3. Teaching purpose: 1. Make students understand the generation and meaning of fractions, the denominator and numerator of fractions, the characteristics of fractions and the correct reading and writing of fractions. 2. Cultivate students' abstract generalization ability. And serve the practice. " Emphasis and difficulty in teaching: understanding the meaning of scores. Teaching process: 1. Expose the topic 1. Question: (1) Divide six apples equally to the second child, how many will each child get? (3 per person) (2) Divide 1 apple to 2 children on average. How much does each child get? This apple is divided into half for everyone. Assign a student to measure the length of the blackboard with a ruler of 1 meter. (longer than 3 meters, shorter than 4 meters. ) 3. Reveal the topic. In actual production and life, people often can't get integer results when measuring and calculating. In this case, a score is generated. What is a score? In this lesson, we will learn the meaning of fractions. Second, we will teach a new lesson 1. Point out to the students that we have learned that dividing an object or a unit of measurement into several parts is called a fraction. For example, (1) shows the moon cake map. Question: Divide 1 cake into two parts equally. (2) Show a square diagram. Question: How to divide this square piece of paper? How many shares did you get? Show a line graph for each (3) question: divide a line segment into five parts on average. How much part of this line segment is this 1 part? How about making four copies like this? If the length of 1 decimeter is divided into 10 parts, what is the score of this 1 part? 7 2. Further understand the unit "1". All the above are about taking an object or a unit of measurement as a whole. We can also take many objects as a whole, such as four apples, a batch of toys, a class of students and so on. For example, (1) shows pictures of apples on page 86 of the textbook. Question: Divide four apples into four parts and one apple. (2) Show pictures of pandas. Question: Take six panda toys as a whole and divide them into three parts on average. How many parts are part of the whole? (3) Exercise: Tell how much the colored part in the picture below accounts for the whole. (4) Guide students to summarize: All of the above are to regard some objects as a whole and divide the whole into several parts on average. One or more copies can also be expressed in fractions. 3. Reveal the meaning of the score. (1) Observe the blackboard writing formed in the above teaching process. Tell students that an object, a unit of measurement or a whole composed of many objects can be represented by the natural number 1, which we usually call the unit "1". (.③ Discussion: What is a score? (3) Summarize and write on the blackboard. Divide the unit "1" into several parts on average, indicating the number of such parts or parts, which is called a score. 4. Exercise 18, question 1, 2, 3. 5. The name of each part of the teaching score, the unit of the score, the reading and writing of the score. (1) The teacher writes at will. (Answer by name) (3) Understand the grading unit and get a preliminary understanding of its characteristics. Exercise: (4) Think about it: What are the ways to read and write scores? Third, consolidate exercises fourth, class summary 1. What is a score? How to understand the unit "1"? 2. What is a decimal unit? What are the characteristics of decimal units? 5. "Do one thing" is on page 87 of the class assignment. 6. Thinking Practice Fill in the appropriate scores in the brackets in the figure below, indicating that each small number is a fraction of a big square. The second teaching time (total teaching time is 42) Teaching content: the application of fractional meaning-textbook 87-88 pages of examples 1, do a problem, practice 18, 4-7 problems and 8*. & gt

Question 2: The benefits of being good at summarizing 1. Good at summing up-achieving dreams.

2. Be good at summing up-find your own shortcomings

3. Being good at summing up-the source of progress

4. Good nail summary-the foundation of success

Question 3: What is the basic nature of the score? The numerator and denominator expand or shrink by the same multiple at the same time, and the fractional value remains unchanged.

Question 4: The significance and nature of mathematical decimals in the second volume of the fourth grade. Summary of small knowledge points. Meaning of decimal: the denominator is 10, 100, 1000 ... can be expressed in decimal.

Properties of decimals: Add 0 or remove 0 at the end of decimals, and the size of decimals remains unchanged.

Question 5: What is the purpose and significance of the year-end summary? Five-point year-end summary is an applied style in which people review and analyze their work and study in the past year, find out their experiences and lessons, and draw regular knowledge from them to guide their future work and practical activities. The year-end summary includes an overview of the past year, achievements and experiences, existing problems and lessons, and the direction of future efforts.

1. Summary must have an overview and a description of the situation, some simple and some detailed. This part mainly analyzes the subjective and objective conditions, favorable and unfavorable conditions, and the working environment and foundation. 2. Achievements and shortcomings. This is the center of summary. The purpose of summing up is to affirm the achievements and find out the shortcomings. What achievements, how big, in what ways and how to achieve them; How many shortcomings there are, what aspects they show, what nature they are, and how they come from, we must make it clear. 3. Lessons learned. There are always experiences and lessons after doing something. In order to facilitate the future work, we must analyze, study, summarize and concentrate, and rise to the theoretical level to understand them. 4. Future plans. According to the future tasks and requirements, we should learn the last one.

Question 6: What is the personal summary format? There is a title in the middle of the first line, which reads "* * * * The year is about to pass * * * * * * Now I will make a personal summary as follows:" ",and then start a new line to summarize the harvest and achievements of the whole year, and finally summarize the shortcomings and propose improvement methods. Finally, sign the date.