1, understanding of numbers: first-year students need to master the basic concepts of the ten numbers 0-9, including their size relationship, writing and so on. In addition, you need to learn simple addition and subtraction operations, such as 2+3=5, 7-2=5 and so on.
2. Comparison of numbers: In the mathematics study of grade one, students need to learn to compare the relationship between two numbers. Usually, the size can be judged by observing the number of digits of a number and comparing the number of digits on the highest digit. For example, the numbers 123 and 456 have the same hundred digits, so we need to compare their ten digits, namely 1 and 4.
3. Number sorting: First-year students need to learn to arrange numbers from small to large or from large to small. For example, for the numbers 1, 2, 3, 4, 5, we can arrange them in descending order as 1, 2, 3, 4, 5; It can also be arranged in descending order as 5, 4, 3, 2, 1.
The development course of mathematical problems
1, ancient Egypt: The ancient Egyptians needed to calculate in architecture, agriculture and trade, so they created some simple arithmetic operators, such as plus sign, minus sign, multiplication sign and division sign. They also invented a computing system called "Babylonian Numbers" to calculate the area and volume of land.
2. Ancient Greece: The ancient Greeks studied mathematics deeply. They invented geometry and studied the properties of triangles, quadrilaterals and other polygons. They also invented algebra to study the properties and operation rules of numbers. In addition, they invented trigonometry to study the properties and applications of trigonometric functions.
3. Indian period: Indians also made many contributions in the field of mathematics. They invented the concept of zero and studied the operation rules of negative numbers and fractions. They also invented the decimal counting system to calculate the area and volume of land.
4. China period: The development of ancient mathematics in China was also very long. As early as the Shang Dynasty, people in China began to calculate by calculation. In the Han Dynasty, mathematicians in China invented the abacus, which is a simple calculation tool for addition, subtraction, multiplication and division. Mathematicians in China also invented nine chapters of mathematical works, such as Arithmetic and Weekly Parallel Computing, which made important contributions to the study of mathematics.
5. Middle Ages: In the Middle Ages of Europe, mathematics was suppressed by Christian theology. However, under the influence of the Arab world, Europe began to re-study mathematics. Arab mathematicians invented some basic concepts and methods in the fields of algebra and trigonometry, which had a far-reaching impact on the later development of mathematics.
6. Renaissance: During the European Renaissance, mathematics got new development. Italian mathematician Galileo Galili Lei Faming invented new mathematical tools and methods such as telescope and kinematics, which laid the foundation for the later scientific revolution. Dutch mathematician Simon Heinrich Euler invented calculus, which is one of the important branches of modern mathematics.
7. Modernity: With the development of science and technology, mathematics is more and more widely used in various fields. Modern mathematics includes algebra, geometry, analysis, topology and many other branches. Mathematicians have promoted the development and application of mathematics through continuous exploration and innovation.