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How many sections are there in junior high school mathematics? What is the difference?
Last semester

Chapter one, rational numbers.

Chapter two, addition and subtraction of algebraic expressions.

Chapter 3, One-dimensional linear equation.

The fourth chapter, the preliminary understanding of graphics.

Next semester

Chapter five, intersection line and parallel line.

Chapter 6, Plane Cartesian Coordinate System

Chapter 7, Triangle

Chapter 8, Binary linear equations.

Chapter 9, inequality and unequal groups.

Chapter 10, data collection, collation and description