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Vietnam: What is the formula for calculating the area of a right triangle at the primary education level? What learning outcomes are required for geometry content in the Mathematics curriculum at the primary education level?

What is the formula for calculating the area of a right triangle at the primary education level in Vietnam? What learning outcomes are required for geometry content in the Mathematics curriculum at the primary education level?

What is the formula for calculating the area of a right triangle at the primary education level in Vietnam?

The area of a right triangle is the measure of the surface area of that triangle. In other words, it indicates how large or small the right triangle is.

A right triangle is exactly one-half of a rectangle formed by its right-angled sides.

Therefore, to calculate the area of a right triangle, we take the area of the rectangle and divide it by two to get the area of the right triangle.

What is the formula for calculating the area of a right triangle at the primary education level in Vietnam?

Formula to calculate the area of a right triangle:


Area = (first right-angled side x second right-angled side) / 2
 

Or in shorthand notation:

S = (a x b) / 2
 

Where:

S: is the area of the right triangle

a and b are the lengths of the two right-angled sides

Example:

If a right triangle has two right-angled sides of 3cm and 4cm respectively, the area of that triangle will be:

S = (3cm x 4cm) / 2 = 6 cm²

Example problem: A piece of land in the shape of a right triangle has two right-angled sides of 12m and 16m respectively.

Requirement: Calculate the area of that land.

Solution:

To calculate the area of the right triangle, we use the formula:

Area = (first right-angled side x second right-angled side) / 2

Applying to the problem, we have:

First right-angled side: 12m

Second right-angled side: 16m

Thus, the area of the lot is:

Area = (12m x 16m) / 2 = 96 m²

Conclusion:

The area of the piece of land in the shape of a right triangle is 96 square meters.

Some notes for students when doing exercises are as follows:

Units: When calculating the area, ensure that the sides have the same unit of measurement (e.g., all in cm, m, ...).

Drawing: Drawing the right triangle will help you visualize the right-angled sides and the area calculation formula.

Note: The information above is for reference only././

How to calculate the area of a right triangle for elementary school? What are the requirements for achieving in the primary school mathematics geometry section?

What is the formula for calculating the area of a right triangle at the primary education level in Vietnam? What learning outcomes are required for geometry content in the Mathematics curriculum at the primary education level? (Image from the Internet)

What learning outcomes are required for geometry content in the Mathematics curriculum at the primary education level in Vietnam?

According to sub-section 2 of section 3 in the General education program in Mathematics issued together with Circular 32/2018/TT-BGDDT, learning outcomes required for geometry content in the Mathematics curriculum at the primary education level in Vietnam are as follows:

- Contribute to the formation and development of mathematical competence with the required achievements: perform mental operations at a simple level; ask and answer questions when reasoning, solving simple problems; choose arithmetic operations and formulas to present, express (in speaking or writing) the content, ideas, and methods for solving problems;

- Use mathematical language in combination with common language and physical gestures to express mathematical content in simple situations; use simple math learning tools and means to perform simple learning tasks.

- Have fundamental initial mathematical knowledge and skills that are essential regarding:

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

+ Geometry and Measurement: Observe, recognize, and describe the shapes and features (at an intuitive level) of some flat and solid figures in reality; create some simple geometric models; calculate some geometric quantities; develop spatial imagination; solve some simple real-life problems associated with Geometry and Measurement (with common measurement units).

+ Statistics and Probability: Some simple statistical and probability elements; solve some simple real-life problems associated with some elements of statistics and probability.

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

Download here - Readers can view the General education program in Mathematics issued together with Circular 32/2018/TT-BGDDT.

What are the regulations on the manners of primary school students in Vietnam?

According to Article 37 of the Regulation issued together with Circular 28/2020/TT-BGDDT, manners and attire of primary school students shall follow industry and legal regulations with particular attention as follows:

- Have a serious, honest attitude in study, examination, evaluation, and activities.

- Do not cause disorder affecting the activities of the class, school, and public places.

- Do not cause danger to oneself and others when participating in play activities.

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