What is the formula for calculating the perimeter of a square? What are objectives of teaching Mathematics for primary school students in Vietnam?

What is the formula for calculating the perimeter of a square?

The formula for calculating the perimeter of a square is typically taught to grade 3 and 4 students in Vietnam. However, there may be special cases where the curriculum can be slightly adjusted.

To calculate the perimeter of a square, apply the following formula:

*Notation:

P: Perimeter of the square

a: Side length of the square

Condensed formula: P = 4 x a

*Example: If a square has a side length of 5 cm, then the perimeter of that square is: P = 4 x 5 = 20 cm.

*Note:

- Unit of measurement: The unit of perimeter will be the same as the unit of the side (e.g., cm, m, km).

- Application: This formula is very useful for calculating the perimeter of square-shaped objects such as picture frames, sports fields, window panes, etc.

*Some practice exercises for students:

Simple problem:

A square has a side length of 7 cm. Calculate the perimeter of that square.

A square piece of land has a side length of 20 m. What is the perimeter of the land in meters?

Problem to find the side:

It is known that the perimeter of a square is 36 cm. Calculate the side length of that square.

A square picture frame has a perimeter of 80 cm. Find the side length of the picture frame.

Comprehensive problem:

There are two squares. The first square has a side length of 5 cm, and the second square has a side length twice as long as the first square.

Calculate the perimeter of each square.

How many centimeters more or less are the perimeters of the two squares?

A wire is 40 cm long. It is bent into a square shape. Calculate the side length of the square.

*Note: Information is for reference only./.

What is the formula for calculating the perimeter of a square? What are objectives of teaching Mathematics for primary school students in Vietnam?​ (Image from the Internet)

List of grade 5 Mathematics textbooks used in general education institutions in Vietnam

Based on the list of textbooks for Grade 5 subjects, educational activities, and Grade 3, 4 Chinese language textbooks used in general education institutions issued with Decision 4119/QD-BGDDT in 2023, the List of grade 5 Mathematics textbooks used in general education institutions in Vietnam includes:

In which:

[1] Organization or individual registering and requesting the appraisal of textbooks in 2023.

[2] Collaborating and linking with organizations or individuals in compiling, registering, and requesting the appraisal of textbooks in 2023.

What are objectives of teaching Mathematics for primary school students in Vietnam?

According to Subsection 2, Section 3 of the General Education Curriculum in Mathematics issued with Circular 32/2018/TT-BGDDT, the objectives of teaching Mathematics for primary school students in Vietnam are as follows:

- Contribute to forming and developing mathematical abilities with the following requirements: perform mental operations at a simple level; ask and answer questions when reasoning, solving simple problems; select arithmetic operations and formulas to present, express (orally or in writing) contents, ideas, solutions; use mathematical language combined with regular language and body gestures to express mathematical content in simple situations; use simple mathematical tools and means to perform simple math learning tasks.

- Have basic initial and essential mathematical knowledge and skills regarding:

+ Numbers and calculations: Natural numbers, fractions, decimals, and operations on those number sets.

+ Geometry and Measurement: Observe, recognize, describe the shape and features (at a visual level) of some plane and solid figures in real life; create some simple geometric models; calculate some geometric quantities; develop spatial imagination; solve some practical problems related to Geometry and Measurement (with common measurement quantities).

+ Statistics and Probability: Some simple elements of statistics and probability; solve some practical problems related to statistical and probability elements.

- Along with other subjects and educational activities such as Ethics, Nature and Society, Experiential Activities,... contribute to helping students have initial understandings of some professions in society.

See the General Education Curriculum in Mathematics issued with Circular 32/2018/TT-BGDDT: Download.