First of all, introduce.

1. Introduce the significance of the equation and its importance in mathematics.

2. Review the knowledge of mathematical equations that students have learned, such as algebraic expressions and equations.

3. Lead out the theme of this lesson: the meaning of equation and its application in solving problems.

Second, explain the meaning of the equation

1. Define an equation: An equation is an equation containing unknowns, constants and operators. It means that the expressions on both sides of the equation are equal. Mathematical expression of equal sign, for example, x+2 = 5.

2. Emphasize two basic elements of the equation: the unknown and the equal sign.

3. Explain how to identify the equation: see if there are unknowns and equal signs.

Third, for example.

1. Examples are given to illustrate the application of the equation in daily life, such as calculating change and time when shopping.

2. Illustrate the application of the equation in science, engineering and other fields through physical and chemical examples.

Fourth, practice and discussion.

1, give some equations, let students distinguish which equations are and which are not, and explain the reasons.

2. Through group discussion, let students try to solve some simple equations and share their solutions.

3. Comment on students' solutions and point out the correct methods and steps to solve equations.

Verb (abbreviation of verb) summary and review

1. Significance of backtracking equation and its application in solving problems.

2. Emphasize the important position and function of equation in mathematics.

3. Assign homework, let students solve some simple equations and think about their application in daily life.

VI. Evaluation and Reflection

1, this lesson focuses on the significance of equation and its application in solving problems, so that students can better understand the concept and application of equation through examples and exercises.

2. In the process of explanation, we should pay attention to students' acceptance and reaction, and adjust the explanation speed and method in time to ensure that students can understand and master the relevant knowledge of the equation.

3. In practice and discussion, students should be encouraged to actively participate and give full play to their main role. At the same time, timely guidance and correction should be given to help students improve their ability and level of solving equations.