High school mathematics is integrated according to compulsory elective knowledge, with classic examp

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2 Known set u r,a {x|2>|x-3|},b=,find a b,a cub.

Solution: a {x|5>x>1},b==,a∪cub=｛x|5>x>4,1

Summary. Hello dear<>

Compulsory and optional textbooks are taught in compulsory textbooks: compulsory courses are the foundation of high school mathematics education, and they contain the core knowledge and basic skills that students must learn. In compulsory textbook teaching, teachers usually follow the learning objectives and syllabus set by the curriculum standards.

Teachers will explain the content of the textbook chapter by chapter and section by section, and guide students to grasp the basic concepts, theorems and problem solving methods. At the same time, the teacher will also organize students to conduct exercises and comment on exercises to consolidate what they have learned.

How to teach compulsory and optional compulsory textbooks in high school mathematics.

Hello dear<>

The compulsory courses are the foundation of high school mathematics teaching, and they contain the core knowledge and basic skills that students must learn. In compulsory textbook teaching, teachers usually follow the learning objectives and syllabus set by the curriculum standards.

Teachers will explain the content of the textbook chapter by chapter and section by section, and guide students to master the basic concepts of perturbation, theorems and problem solving methods. At the same time, the teacher will also organize students to conduct exercises and comment on exercises to consolidate what they have learned.

Optional Compulsory Textbook Teaching: Optional compulsory textbooks provide a broader and in-depth content of mathematics knowledge according to students' interests and strengths. In the teaching of selective and compulsory textbooks, teachers can use a variety of ways to teach, such as group cooperation, ** learning, project research, etc.

This can stimulate students' interest and motivation in learning, cultivate their problem-solving skills and innovative thinking<>

Trapped balance.

The high school mathematics optional compulsory course includes four topics: Prerequisites, Functions, Geometry and Algebra, and Probability and Statistics.

The mathematics textbooks of the new college entrance examination include "Sets and Functions", "Trigonometric Functions", "Inequalities", "Number Sequences", "Complex Numbers", "Permutations, Combinations, Binomial Fixed-Hunger Positive Friendship", "Solid Geometry", "Plane Analytic Geometry", and Compulsory One.

5. Elective 1 to 4 rotten locust acacia. "Sets and Functions", "Trigonometric Functions", "Inequality", "Number Series", "Complex Numbers".

High School Mathematics Compulsory 1" is a book published by the People's Education Publishing House in 2007, and the author is the Research Institute of Project Materials of the People's Education Publishing House and the Research and Development Center of Middle School Mathematics Curriculum and Textbooks. This book is the first teaching aid for the compulsory high school mathematics learning stage sequence.

Changes in the new college entrance examination mathematics textbook:

From the perspective of the difficulty of the unified examination papers in various districts and the municipal heavy month after the use of the new textbooks, the difficulty of the mathematics papers in the 2023 college entrance examination is likely to increase, moving closer to the national papers. The inverse function part is marked with stars in the new textbook, and oranges are no longer used as a point of investigation.

The old textbook taught trigonometry and sequences, while the new textbook teaches trigonometry, complex numbers, and vectors. The trigonometric function section has not changed much, and the formula of the product sum difference and the sum difference product have been added (which were not covered in the original textbook, but will be used in the exam, so the impact is not great).