superiority

1, the game was introduced, which aroused the enthusiasm of students. The teaching content of this lesson is about the mathematical symbol "=" > "<: "understand.

2. Scientific and standardized writing, interesting nursery rhymes, so that students can easily master the learning content of this lesson. Through this lesson, students should know who is older and who is younger, and know that it is equal to.

3. The teaching design is distinct and interlocking, and the teaching ideas and levels of this class are relatively clear.

4. The teacher divides teaching into three levels: cognition equals symbols. Know the greater than sign and the less than sign. Knowledge equals symbols.

disadvantaged

1, there are not enough details in class.

2. Students lack motivation.

3. The whole class atmosphere is not very active, and the students' excitement is not high.

4. There is no scene suitable for students to learn, which leads to incoherent teaching process.

suggestion

For the first-year students, although they already know the greater than sign, less than sign and equal sign in kindergarten, the knowledge is not rigorous enough and needs to be sorted out and deepened under the guidance of teachers.

Dayu Hao

The greater than sign is the symbol of inequality operation in mathematics. The greater than sign is widely used in arithmetic, which is a necessary content for primary schools. In 1655, Wallis is used to mean "equal to or greater than", and in 1670, he also means "equal to or greater than" and "equal to or less than" respectively.

According to a letter Goldbach wrote to Euler in June 1734, the symbols ≧ and ≦ commonly used today were first adopted by a Frenchman, P. Bouguet (1698-1758), and gradually became popular.

Less than sign

Less than sign is one of the symbols of inequality operation in mathematics. Harriet, the British mathematician, was the first to use the symbol "",but it was not published until 163 1 year after his death. Therefore, it is generally considered that it was 163 1 year.

Equality means equality.

Equation is one of the most important relationships in mathematics. When one numerical value is equal to another, an equal sign (=) is used to indicate the relationship between them.