(1) Teaching material structure.

The first volume of the first-grade primary school mathematics textbook published by People's Education Publishing House sets the "first step" around the mathematics curriculum objectives in compulsory education according to the characteristics of children who have just entered school. The following contents are arranged in order: lesson preparation, position, understanding and addition and subtraction of 1-5, understanding of graphics (1), understanding and addition and subtraction of 6- 10, understanding of various numbers of1-20, understanding of mathematics paradise, understanding of clocks and watches, addition within 20, and total

(2) Analysis of main contents.

The first step is very important! This textbook focuses on four aspects to be introduced in compulsory education: number and algebra, shape and geometry, statistics and probability, synthesis and practice. It leads children to enter the "gate of mathematics" for the first time, to know numbers and calculations, to compare numbers, to know three-dimensional figures, to get a preliminary understanding of the clock face ... so that students can acquire the basic knowledge and skills of counting, develop mathematical ability, cultivate innovative consciousness and practical ability, and establish learning and practice.

This textbook combines the identification and calculation of numbers, interspersed with teaching, so that students can gradually form the concept of numbers and achieve the purpose of skilled calculation. In this process, we attach importance to students' understanding of logarithm concept, make students realize that numbers can be used to express and communicate, and initially establish digital consciousness. In the teaching of calculation, it reflects the diversity of algorithms, allows students to use the methods they think are suitable for calculation, attaches importance to students' experience, and designs activities and learning materials according to students' existing experience and knowledge.

Lead children to intuitively understand three-dimensional and plane graphics and develop students' spatial concepts. By arranging the content of "using mathematics", students' initial application consciousness and ability to solve problems with mathematics are cultivated.

There are comprehensive exercises behind each unit of the textbook, which are flexible and diverse, and can play a very good role in consolidating knowledge. "Mathematics Paradise" embodies the principle of subjectivity well, which can mobilize students' enthusiasm to the maximum extent and cultivate students' interest in mathematics. This textbook also reflects the openness and creativity of teaching methods and provides rich resources for teachers to organize teaching.