First, the design ideas
The essence of teachers' teaching lies in helping, encouraging and guiding. This course is designed by using students' existing experience, paying attention to reality and combining problem solving and calculation in the new curriculum, so as to achieve the organic unity of mathematical thinking, mathematical methods, mathematical knowledge and mathematical skills.
(According to the above design ideas, make the following analysis on the teaching materials and students)
Second, analysis of teaching materials and learning situation
The content of this lesson is based on students' recent mastery of the meaning and nature of decimals, as well as familiar integer addition and subtraction and simple decimal addition and subtraction. The content of this lesson is the need of students' daily life and learning in one step, and it is also the necessary knowledge and skills for primary school students to understand and master decimal addition and subtraction operations and algorithms.
According to the investigation of the fourth-grade students in our school, the fourth-grade students have mastered the addition and subtraction of one decimal because they learned the simple addition and subtraction of decimals in the third class, and most of them can correctly calculate the addition and subtraction of two or more decimals. Moreover, the fourth-grade students have already had some life experience. Therefore, this course adopts the teaching method of trying to explore.
(Based on the above analysis, the following objectives are formulated)
Third, the teaching objectives
2008-07-27 09: 10:39 Fraction addition and subtraction presentation [Four-year Mathematics Lecture]
The first draft of "Decimal Addition and Subtraction" I. Design Ideas The essence of teachers' teaching lies in helping, motivating and guiding. This course is designed by using students' existing experience, paying attention to reality and combining problem solving and calculation in the new curriculum, so as to achieve the organic unity of mathematical thinking, mathematical methods, mathematical knowledge and mathematical skills. (According to the above design ideas, the teaching materials and students are analyzed as follows.) Second, the analysis of teaching materials and learning situation The content of this lesson is that students have recently mastered the meaning and nature of decimals and the simplicity of integer addition and subtraction and three times of learning. ...
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2008-07-27 09:00:36 "Mathematical Problems in Go" said that the manuscript was wide-angle [four-year mathematics lecture] of the fourth grade mathematics of People's Education Press.
Lecture notes on Mathematical Problems in Go 1. Textbook: 1. Teaching content: People's Education Edition textbook, the second volume of grade four, wide angle of mathematics, 120 pages, example 3 and some exercises. 2. teaching material analysis: As we all know, the new textbook of People's Education Edition has specially arranged a "mathematical wide angle" unit to infiltrate some important mathematical thinking methods into students, strengthen their comprehensive application of knowledge, and gradually improve their ability to solve problems. This textbook mainly permeates some ideas and methods about tree planting, and allows students to discover some common practical problems in real life. ...
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2008-07-27 08:39:00 Mathematics Wide Angle-Pancake Problem Speaker Education Edition Volume 7 [Four-year Mathematics Lecturer]
Mathematics Wide Angle-Pancake Problem Lecture Notes 1. Textbook: Pancake problem is the content of Mathematics Wide Angle in Book 7 of People's Education Press textbook. This paper mainly discusses how to arrange homework reasonably in pancakes to save time and let students know how to optimize their thinking in solving problems. The arrangement of this section accords with students' cognitive characteristics. It is the embodiment that knowledge comes from life and mathematics is everywhere in life, which provides a good material and demonstration for our teachers to guide mathematics in contact with life. Due to the long-term "exam-oriented" teaching, this part of knowledge will come to students. ...
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2008-07-26 17:23:55 Jiangsu (National Standard) Edition, the first volume of "Understanding Calculator and its Calculation Method" [Four-year Mathematics Lecture]
In the first volume of Grade Four, Understanding Calculator and Its Calculation Method, it is said that "Calculation with Calculator" is the teaching content of Unit 11 of Grade Four Mathematics in Jiangsu Education Press. This part of the content is taught on the basis that students have mastered four calculation rules of integers and two-step mixed operation. Through learning, students can do a lot of four operations with the help of calculators, and explore relevant laws with the help of calculators, which is conducive to helping students form their initial ability to explore and solve problems. This unit is divided into two sections: the first section, first understand the calculation. ...
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2008-07-26 17:22:03 PEP Volume VII Activity Content "Visiting Orchards" Lecture Notes [Four-year Mathematics Lecture]
"Small planner" is a math activity class designed according to the concept of new curriculum standards and combined with the "research on cultivating students' divergent thinking by using modern information technology" in our school. In order to make the activity content closer to students' life, I adapted the activity content of Book 7 of People's Education Press, and designed an autumn outing plan. This activity class consists of three parts. First of all, before class, students collect information and make corresponding surveys, and the teacher makes a simulated web page based on the collected information and survey data. Second, in class, let students extract from the web page. ...
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2008-07-2617:16:18 Decimal Size Change Caused by Decimal Position Movement [Four-year Mathematics Lecture]
(Teaching Design Lecture Notes) Decimal size change caused by decimal position movement 1. Textbook: 1. Lecture content: Nine-year compulsory education Six-year primary school mathematics Volume 8 Page 96 "Decimal size change caused by decimal position movement". 2. teaching material analysis in this lesson: The research on the change of decimal size caused by the movement of decimal position is based on mastering the meaning, nature and comparison of decimal size. Learning this law is not only the theoretical basis of decimal multiplication and division, but also the mutual rewriting of composite numbers and decimals. ...
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2008-07-2617:12: 59 Lecture on the Generation and Significance of Decimals [Four-year Mathematics Lecture]
The generation and significance of decimals are the beginning of students' systematic study of decimals, which is based on their preliminary understanding of fractions and decimals in grade three. Through this part of teaching, students can further understand the meaning and nature of decimals and lay a good foundation for learning four decimal operations in the future. The teaching focus of this lesson is to make students clear about the generation and significance of decimals, the relationship between decimals and fractions, and the counting unit of decimals, so as to have a clearer understanding of the concept of decimals. The difficulty of teaching lies in ...
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2008-07-2617:10: 51Decimal Preliminary Understanding [Four-year Mathematics Lecture]
A preliminary understanding of decimals: the first lecture. Textbook 1. Lecture content: Nine-year compulsory education and Six-year primary school mathematics Volume VII P 117-18 cases1and Example 2 and "Do a problem, Exercise 28+0-3" 2. The position and function of teaching content: The initial understanding of decimals is based on students' mastery of four operations within 100 million yuan and their initial understanding of fractions. This lesson includes understanding decimal numbers and their reading and writing. Knowing a decimal is the most basic knowledge in the initial understanding of decimal, and its learning is not only accurate for students. ...
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2008-07-26 17:07:29 Presentation of "Arrangement and Review", the eighth volume of primary school mathematics [four-year mathematics demonstration]
Lecture Notes of Arrangement and Review I. Teaching Contents Primary School Mathematics Volume 8 Unit 2 Arrangement and Review P36—P72. Second, the teaching goal enables students to further master the reading and writing rules of multi-digits. 1, so that students can further master the method of finding the divisor of a number greater than 100 million. 2. Let students understand the relationship between the parts in the four operations. Thirdly, the teaching emphasis can make students understand the relationship between the parts in the four operations. Fourth, the teaching difficulties use the relationship between the parts of the four operations to solve practical problems and improve the ability to solve problems. V. Class safety ...
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2008-07-20 09:40:09 Representation of the position of the primary school mathematics handout [four-year mathematics handout]
The expression of position —— The Application of Computer in Education by Sun Jinqi, a student of Songnan No.2 Primary School, has changed the teaching means, teaching methods, ideas and forms of textbooks, classroom teaching structure, and even teaching ideas and theories. However, mathematics comes from life, and life cannot be separated from mathematical knowledge. Primary school mathematics itself involves some specific problems, which are inseparable from students' daily life. So how to integrate computer multimedia-assisted teaching with classroom teaching? Therefore, I think the effectiveness of the modernization of educational means lies in the exploration class of teachers. ...
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2008-07-1510: 37: 58 Lecture on "Saving Energy" in Mathematics Activity Class for Grade Four [Four-year Mathematics Lecture]
"Energy Saving" Mathematics Activity Class —— Lecture and Teaching Design I. Lecture Textbook 1. Lecture content: Nine-year compulsory primary school mathematics Volume 7-Saving energy. 2. Significance and function of the textbook: This activity allows students to investigate the water and electricity consumption at home last month and exchange and compare in groups. * * * On the one hand, it can consolidate the previous knowledge about decimals, on the other hand, it can let students gradually get in touch with social life, understand some common sense in real life, and get initial development in the process of solving practical problems. ...
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2008-07-1411:03: 01"Characteristics of Triangle" Lecture by the Speaker [Four-year Mathematics Lecture].
The lecture notes of "Characteristics of Triangle" in the second volume of fourth grade mathematics published by People's Education Press is the first lesson of Unit 5 in the second volume of fourth grade mathematics published by People's Education Press, and this lesson is the learning content of the second section of "Space and Graphics" in six-year mathematics. Before this, the students already knew the characteristics of parallelogram and trapezoid. With an intuitive understanding of triangles, we can distinguish triangles from plane figures. This lesson is mainly to help students understand the meaning of triangle and master its characteristics on the basis of their original perceptual knowledge, so as to further learn the existence of other geometric figures in the future. ...
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2008-07-09 09:35:20 "Simple Calculation" Lecture Manuscript Fourth-grade Mathematics of People's Education Press [Four-year Mathematics Lecture]
1. Textbook: Simple Calculation is the content of Unit 3 P44 of Mathematics in Book 8 of People's Education Publishing House. It is taught on the basis that students master the meaning of multiplication and understand the laws of multiplication and exchange, association, distribution and division. This class strives to highlight the educational thought of students' development, so the whole teaching process requires students to study independently, explore independently, and observe, summarize and apply through students. ...
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2008-07-07 08: 15:56 Lecture on the Relationship between Triangles [Four-year Mathematics Lecture]
Lecture Notes on the Relationship of Triangular Sides 1. Talking about the content of the textbook: Mathematics, the standard experimental textbook for compulsory education curriculum published by People's Education Publishing House, Volume 8, page 82, Example 3-the relationship of triangular sides. The relationship between triangle sides is a new content in the new textbook, which is arranged in the second issue. Through the study of this content, students can further understand the composition characteristics of triangles on the basis of establishing the concept of triangles, deepen their understanding of triangles, and lay a foundation for learning the connections and differences between triangles, quadrangles and other polygons in the future. ...
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2008-07-02 09:23: 10 "Positive Numbers and Negative Numbers" Lecture [Four-year Mathematics Lecture]
Lecture for Grade Four: "Positive Numbers and Negative Numbers" Today, my lecture is "Positive Numbers and Negative Numbers". Teacher Li Na did a good job of sorting out the digital knowledge she had learned before in front of the students. Now I will only talk about the relevant contents involved in this class. First, my understanding of the requirements of the curriculum standard "Mathematics Curriculum Standard" is arranged in the second semester of primary school to initially understand negative numbers, which is a new content in primary school mathematics teaching. For a long time, negative teaching has been arranged in the primary stage of middle school teaching. Now, considering the wide application of negative numbers in life, students ...
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2008-07-02 08:48:2 1 "the nature of decimals" lecture design fourth-grade mathematics lecture [four-year mathematics lecture]
The seventh lesson of five-year primary school mathematics: the nature of decimals 1 Textbook 1. Teaching content: The significance and nature of decimals in Unit 3, Lesson 7 of five-year primary school mathematics Lesson 3: The nature of decimals (textbook pages 64-65, example 1- example 4) includes: (1). (2) The application of decimal nature (Unit 4, Volume 8 of the six-year program). 2. Location of teaching materials: This section is the beginning of systematic study of decimals, which makes necessary preparations for the following study of four decimal calculations and plays a foreshadowing role. 3. The focus and difficulty of the textbook: Yes. ...
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2008-06-2210: 35: 51"Understanding of Triangle" Lecture Draft Jiangsu Education Edition National Standard [Four-year Mathematics Lecture Notes]
Jiangsu Education Publishing House National Standard Edition Fourth Grade Mathematics Handout Draft: Understanding of Triangle 1. Teaching Background and Target Orientation (1) teaching material analysis: Understanding of Triangle is the content of Unit 3, Volume 8, the national standard textbook for primary school mathematics of Jiangsu Education Publishing House. Before this, students have learned the angle and got a preliminary understanding of the triangle, but they have not explored the trilateral relationship of the triangle. This lesson will focus on guiding students to explore the trilateral relationship of a triangle and understand that the sum of any two sides is greater than the third side. In the textbook, the example 1 asks students to find triangles in real situations and use different materials. ...
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2008-05- 14 09:44:46 Lecture on Classification of Corners by People's Education Press [Four-year Mathematics Lecture]
The classification of angles is the content of the third lesson "Angle Measurement" in Unit 2, Volume 1 of the fourth grade mathematics experiment textbook published by People's Education Press. 1. teaching material analysis: With regard to angles, students have had initial contact in "A Preliminary Understanding of Angles" in Grade Two, and they have some knowledge of right angles, but most of them are intuitive descriptions. Based on Grade Two, this book abstracts the characteristics of graphics appropriately. The classification of angles is the third lesson in this unit, after students have a preliminary understanding of straight lines, line segments and rays. ...
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2008-05-1316: 5106 Lecture on Sum of Interior Angles of Triangle [Four-year Mathematics Lecture]
On the lesson of the sum of the interior angles of a triangle-A draft of the mathematics lesson in the second volume of the fourth grade of People's Education Press ★ Analysis of teaching materials and learning situation "The sum of the interior angles of a triangle" is the teaching content of the second volume of the fourth grade of People's Education Press, and it is an important property of a triangle. It is helpful for students to understand the relationship between the three internal angles of a triangle, and it is also the basis for further study. After the first study period and the study of this unit, students have acquired some corresponding triangle knowledge and skills, preliminary hands-on ability, active inquiry ability and cooperative learning habits, which are for feeling, understanding and abstraction. ...
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2008-05-1311:22: 06 Lecture Notes on the Law of Multiplication and Association published by Beijing Normal University [Four-year Mathematics Lecture]
Lecture Notes on the Law of Multiplication and Association in Grade Four —— Lecture Notes on Volume One and Volume Seven of Mathematics published by Beijing Normal University. Background analysis: This textbook is taught on the basis that students have mastered the meaning of multiplication and preliminarily understood the laws of multiplication and exchange. This class strives to highlight the educational thought of students' development, so the whole teaching process requires students to study and explore independently, and through students' observation, verification, induction and application, students can feel the exploration and challenge of mathematical problems. Students may be interested in the process of cognition. ...
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