What are the teaching contents of junior high school mathematics and what are the teaching methods o

Positive numbers: Numbers greater than 0 are called positive numbers.

Negative: A number smaller than 0 is called a negative number.

Fractions and integers are collectively called rational numbers, and rational numbers are also divided into positive rational numbers and negative rational numbers.

So: integers can be divided into, positive integers, negative integers, and 0s

Scores can be divided into: positive and negative.

Infinite non-cyclic decimal numbers are called irrational numbers, such as pi is an irrational number. Irrational numbers are also divided into positive irrational numbers and negative irrational numbers.

Rational and irrational numbers are collectively called real numbers.

That's something you probably haven't really understood yet. Positive and negative numbers are distinguished by 0, and those greater than 0 are positive, and those less than 0 are negative. If a number is divided by 2 = an integer, then the number is even (e.g. .

0 2 4 6 8) If a number divided by 2 is not equal to an integer, then this number is an odd number (e.g., 1357), if a number divided by 1 and its own and other numbers are equal to an integer, then this number is and (e.g. 4, 8, 9 are all and 123 is not), a number is a number except that it is divided by 1 and itself can be equal to an integer, then this number is a prime number (e.g. 1, 2, 3 are both and 4 8 9 is not), you should find that odd numbers and even numbers are opposite, prime numbers and numbers are opposite.

In general, there should be rational numbers and irrational numbers, there are positive numbers, negative numbers and zeros in rational numbers, and positive and negative numbers are divided into positive and negative integers and positive and negative fractions. An even number is the product of 2, and an odd number is the product of everything except 2. And real numbers, functions, and so on...

I can't say anything, I advise you to check it out

Mathematics has natural numbers, rational numbers, irrational numbers, integers, positive integers, negative integers, decimal numbers (fractions), positive numbers, negative numbers, real numbers, even numbers, odd numbers, prime numbers, and that's it.

In junior high school, real numbers, irrational numbers, rational numbers, positive numbers, negative numbers, 0, non-negative integers, non-positive integers, odd numbers, even numbers... That's enough.

There are a lot of words in mathematics, I'm only a freshman in high school, and with a collection of those, it will be much deeper to eat.

The teaching methods of junior high school mathematics include bringing abstract theories to life, arousing students' curiosity, teaching students according to their aptitude, and using modern means to teach.

1. Bring abstract theories to life: The theories and definitions of mathematics are slightly boring and difficult to understand to a certain extent. In addition, junior high school students have limited learning ability, which is difficult to understand for a while.

This requires teachers to summarize knowledge into easy-to-understand sentences in the process of teaching, taking concrete examples in combination with specific actual situations.

2. Arouse students' curiosity: mathematics is a mirror of life and the embodiment of numbers and shapes. Teachers can use the charm of mathematics itself to put aside boring theoretical knowledge in class and give some examples in life to show the magical power of mathematics, stimulate students' enthusiasm and mobilize students' enthusiasm for learning.

3. Teaching students according to their aptitude: Teachers formulate different teaching strategies according to the differences in students' learning foundation and learning ability. The requirements for students with poor grades should not be too high, and they should be allowed to start from the basics, from shallow to deep, slowly cultivate interest in subjects, and build self-confidence.

4. Use modern means to teach: use slides, computers, etc. to visualize relatively boring and abstract things, so as to make them three-dimensional, vivid and vivid. Bring students into the magical world of mathematics and experience the infinite charm of mathematics.

The teaching methods of junior high school mathematics are as follows:

a) Methods of acquiring indirect experience in the form of language. This type of teaching method refers to the teaching method that is based on oral language activities of teachers and students and independent reading of written language by students. It mainly includes: lecture method, conversation method, discussion method and reading guidance method.

1. Teaching method.

Teaching method is a teaching method in which teachers use oral language to describe situations, narrate facts, explain concepts, demonstrate principles and clarify laws to students.

2. Conversation method.

The method of conversation, also known as the law. It is a method of disseminating and learning knowledge through conversations between teachers and students. It is characterized by the teacher guiding students to apply existing experience and knowledge, and the questions asked by the teacher in order to acquire new knowledge or to consolidate and check what they have already learned.

3. Discussion method.

The discussion method is a method of learning by the whole class or small group around a central issue by expressing their opinions and opinions on a central issue, discussing together, inspiring each other, and brainstorming.

4. Reading instruction.

2) Methods of Obtaining Direct Experience in an Intuitive Form This type of teaching method refers to the method by which the teacher organizes students to directly contact real things and gain perceptual knowledge through perception and comprehend what they have learned. It mainly includes the demonstration method and the tour method.

1. Demonstration method.

Demonstration method is a teaching method in which the teacher shows the real object or the image of the real object to the students for observation, or through demonstrative experiments and modern teaching methods, so that students can obtain knowledge updates. It is an adjunctive teaching method and is often used in conjunction with methods such as lectures, talks, discussions, etc.

2. Visiting method.

The visit method is a method of organizing students to go to certain off-campus places - nature, production sites and other places of social life according to the requirements of teaching purposes, so that students can acquire new knowledge through observation and research of actual things and phenomena.

3) Teaching methods for forming skills and techniques in the form of practical trainingThis teaching method is a teaching method with the main task of forming students' skills, behavioral habits, and cultivating students' problem-solving ability. It mainly includes methods such as exercises, experiments, and practical assignments.

1. Practice methodPractice method is a basic method for students to consolidate knowledge and cultivate various learning skills under the guidance of teachers, and it is also a major practical activity in the learning process of students.

2. Experimental methodExperimental method is a teaching method in which students use certain equipment and materials under the guidance of the teacher to cause certain changes in the experimental object by controlling the operation of the bar, and obtain new knowledge or verify knowledge from observing these changes, and it is also a method commonly used in natural science disciplines.

3. Internship method (or internship method) The internship method is a teaching method in which students use a certain internship place and participate in a certain internship work to master certain skills and related direct knowledge, or verify indirect knowledge, and comprehensively use the knowledge they have learned.