First, the student situation analysis:
Grade three students 17, including boys 10 and girls 7. Basically, students' habits in study, work and rest have become formalized. However, because students come from different families, parents' educational level and moral quality are quite different. Therefore, some students' study habits and behavior habits are poor. Most students just stay in class and listen attentively, lacking the consciousness and habit of active participation. Some students are lax in class discipline, like to talk at will, refuse to finish their homework on time, and like to drag their homework.
Therefore, this semester, in view of these characteristics, mathematics classes should not only be rich in content, diverse in forms and attractive; Moreover, it is necessary to cultivate students' interest in learning mathematics and let them participate in it, so as to strengthen students' confidence in learning mathematics well, enhance students' willpower and develop good study habits.
Second, teaching material analysis
This textbook includes the following contents: divisor is the division of one digit, two digits are multiplied by two digits, the initial understanding of decimal, location and direction, area, year, month and day, simple data analysis and averaging, solving problems with mathematics, wide angle of mathematics and mathematical practice activities.
Divider is the division of one digit, two digits are multiplied by two digits, area and simple data analysis and average are the key teaching contents of this textbook.
In terms of numbers and calculations, this textbook sorts out the preliminary understanding that divisor is the division of a single digit, the multiplication of two digits by two digits and decimals. This part of multiplication and division calculation is still the basic knowledge and skills that primary school students should master and form, and it is an important basis for further learning calculation.
Starting from this volume, the introduction of the preliminary understanding of decimals is relatively simple. At this time, students often encounter or use knowledge and problems about decimals in their daily life. Learning this part of knowledge can expand the scope of solving practical problems with mathematics and improve students' ability to solve problems. At the same time, students can learn to express and communicate with simple decimals, further develop their sense of numbers, and pave the way for further systematic study of decimals and four decimal operations.
In terms of space and graphics, this textbook arranges two units: position, direction and area, which are the other two key teaching contents of this textbook, providing rich materials for developing students' concept of space. Through the study of these contents, students can initially form the ability to distinguish the direction, express and communicate the direction of objects. Through practical teaching activities, students can gain the experience of inquiry learning, explore and understand the necessity of introducing unified area units, know the area units, master the area formulas of rectangles and squares, and further promote the development of space concepts.
In terms of quantity measurement, this textbook further expands the scope of measurement knowledge. In addition to the understanding of the area unit, it also has a greater understanding of the time unit year, month, day and 24-hour timing method. The teaching of these contents can further develop students' concepts of space and time, and cultivate students' awareness and ability to estimate the size and length of time through practical operation and concrete experience.
In terms of statistical knowledge, this textbook enables students to learn simple data analysis and averaging. The textbook introduces two different forms of bar charts to students, so that students can learn to read these two charts by using their existing knowledge and learn simple data analysis initially. By learning the meaning of the average and the simple method of finding the average signal, we can understand the meaning and practical application of the average and further understand the role of statistics in real life.
On the one hand, the textbook arranges a unit to teach students to solve simple problems in life with the knowledge of multiplication and division; On the other hand, arrange the teaching content of "Mathematics Wide Angle", guide students to learn simple set thinking and equivalent substitution thinking through activities such as observation, guessing, experiment and reasoning, solve some simple problems by using set and equivalent substitution thinking methods, cultivate students' ability of observation, analysis and reasoning, and cultivate students' interest in exploring mathematical problems and awareness of discovering and appreciating mathematical beauty. #8205;