First, the analysis of learning situation:

This semester, our subject teaching is guided by the new concept of the new curriculum standard, with students as the main body, with autonomy, cooperation and inquiry as the main line, with the core of cultivating students' innovative spirit, with the focus on improving students' practical ability and problem-solving ability in daily life, and with the breakthrough of reforming classroom teaching mode, we actively practice the "cooperative learning" teaching mode, so that students can learn through hands-on practice, independent exploration, cooperation and exchange, and bold innovation, and strive to cultivate a learning type.

This class is in the fourth grade. There are 34 students in the class, and the original math foundation is better than the middle reaches of the town. Half of the foreign students in this class are underachievers. Special attention should be paid to the cultivation and counseling of underachievers in peacetime teaching.

Second, the teaching objectives, requirements and tasks of this course this semester

(1) Knowledge and skills:

1. Know the counting units of "100,000", "million", "billion", "billion" and "hundred billion", know the natural number, master the counting method of decimals, and round off a number according to the series. Experience and feel the application of large numbers in daily life, and further cultivate the sense of numbers.

2. I will use a pen to calculate three digits multiplied by two digits and divide by two digits, and I can estimate and check the multiplication and division method accordingly.

3. You can orally calculate two digits multiplied by one digit (the product is within 100) and several hundred dozen multiplied by one digit, divide by ten and divide by several hundred dozen.

4. Know straight lines, rays and line segments, and know their differences; Know several common angles, compare the angles, measure the degrees of the angles with a protractor, and draw the angles according to the prescribed degrees.

5. Know vertical lines and parallel lines, and draw vertical lines and parallel lines with straightedge and triangle; Master the characteristics of parallelogram and trapezoid.

6. Learn relevant knowledge about graphics and develop the concept of space by combining life situations and exploration activities.

7. Understand different forms of bar charts, learn simple data analysis, and further understand the role of statistics in real life.

(2) Process and method

1. Through the process of finding, putting forward and solving problems in real life, we can understand the role of mathematics in daily life and initially form the ability to solve problems by using mathematical knowledge comprehensively.

2. Understand the idea of logistics, cultivate the consciousness of discovering mathematical problems from life, and initially form the ability of observation, analysis and reasoning.

Emotions, attitudes and values

1, experience the fun of learning mathematics, improve the interest in learning mathematics, and establish confidence in learning mathematics well.

2. Develop the good habit of working hard and writing neatly.

Key points:

Understanding of large numbers, three digits multiplied by two digits, two digits divided by divisor, angle measurement, understanding of parallelogram and trapezoid.

Difficulties:

How to read and write numbers within 1 and 1 100 million to cultivate students' sense of numbers?

2. Make students master the estimation method of multiplication.

3. Make students understand the concepts of vertical and parallel, and draw vertical and parallel straight lines with a ruler and a triangular ruler.

4. Let students know two kinds of composite bar charts, ask and answer simple questions, find information and analyze simple data according to the charts.

5. Through simple examples, let students understand the application of operational research and game theory in solving practical problems.

Third, teaching measures

1. In teaching, give full play to students' main role, and encourage students to ask different questions, boldly question and strive for innovation on the premise of learning basic knowledge well.

2. Give full play to the leading role of teachers in teaching, ignore the learning process, attach importance to the cultivation of thinking ability, enhance students' ability to integrate knowledge and improve their comprehensive quality.

3. Carefully study the teaching materials to understand that students can improve classroom efficiency, mobilize students' learning enthusiasm and cultivate students' love for mathematics.

4. In teaching, strengthen the connection between theory and practice, and improve the practical application ability of knowledge.

5. Cultivate students' good study habits and lifelong learning desire.

Fourth, the schedule (see the teaching schedule)