What is a set? What is an element vtv2 trực tiếp bóng đá hôm nay a set? What are contents vtv2 trực tiếp bóng đá hôm nay Lession 1 about "Set" vtv2 trực tiếp bóng đá hôm nay grade 6 Maths in Vietnam?
What is a set? What is an element vtv2 trực tiếp bóng đá hôm nay a set? What are contents vtv2 trực tiếp bóng đá hôm nay Lession 1 about "Set" vtv2 trực tiếp bóng đá hôm nay grade 6 Maths in Vietnam?
The concept vtv2 trực tiếp bóng đá hôm nay a set is commonly encountered in mathematics as well as in life. A set includes elements that share one or a few common properties.
Example:“The set vtv2 trực tiếp bóng đá hôm nay natural numbers divisible by 3 and less than 20”: This is the set vtv2 trực tiếp bóng đá hôm nay natural numbers that satisfy two properties: being divisible by 3 and being less than 20.
Set notation:A set is denoted by a capital letter. The elements are recorded within two curly braces { }, separated by commas, or semicolons.
Example:a is an element vtv2 trực tiếp bóng đá hôm nay set X denoted as a ∈ X.
An element vtv2 trực tiếp bóng đá hôm nay a set is any one vtv2 trực tiếp bóng đá hôm nay the distinct objects that make up that set. A set can have one element, many elements, an infinite number vtv2 trực tiếp bóng đá hôm nay elements, or it can have no elements.
A set with no elements is called anull set.The null set is denoted ∅
Ways to describe a set:There are 2 ways to describe a set:
Method1:Listing the elements vtv2 trực tiếp bóng đá hôm nay the set
Example:B = {0; 2; 4; 6; 8}
Method 2:Indicating the characteristic properties vtv2 trực tiếp bóng đá hôm nay the elements vtv2 trực tiếp bóng đá hôm nay the set
Example:B = {x | x is an even natural number, x < 10}
Types vtv2 trực tiếp bóng đá hôm nay exercises related to sets
Type 1: Writing a set
Example:Write set A vtv2 trực tiếp bóng đá hôm nay natural numbers greater than 5 and less than 15 in two ways.
Answer:
Method 1: Listing the elements vtv2 trực tiếp bóng đá hôm nay the set
The set A vtv2 trực tiếp bóng đá hôm nay natural numbers greater than 5 and less than 10 is: A = {6; 7; 8; 9; 10; 11; 12; 13; 14}
Method2: Indicating the characteristic properties vtv2 trực tiếp bóng đá hôm nay the elements vtv2 trực tiếp bóng đá hôm nay the set.
The set A vtv2 trực tiếp bóng đá hôm nay natural numbers greater than 5 and less than 10 is: A = {x "belongs to" N | 5 < x < 15}
Type 2: Determining the number vtv2 trực tiếp bóng đá hôm nay elements in a set
Example:Calculate the number vtv2 trực tiếp bóng đá hôm nay elements in set A consisting vtv2 trực tiếp bóng đá hôm nay consecutive even natural numbers from 1990 to 3000.
Answer:The consecutive even natural numbers from 1990 to 3000 differ by 2 units. Therefore, the number vtv2 trực tiếp bóng đá hôm nay elements in set A is: (3000 - 1990) / 2 + 1 = 506 elements.
Type 3: Subset
Example 1:Given set A = {Grapes; Plums; Persimmons; Peaches}. Write all the subsets vtv2 trực tiếp bóng đá hôm nay A with 3 elements.
Answer:The subsets with 3 elements vtv2 trực tiếp bóng đá hôm nay A are: {Grapes; Plums; Persimmons}, {Grapes; Plums; Peaches}, {Plums; Persimmons; Peaches}, {Grapes; Persimmons; Peaches}.
What is a set? What is an element vtv2 trực tiếp bóng đá hôm nay a set? What are contents vtv2 trực tiếp bóng đá hôm nay Lession 1 about "Set" vtv2 trực tiếp bóng đá hôm nay grade 6 Maths in Vietnam?(Image from the Internet)
What are required achievements in natural number content for Math 6 in Vietnam?
Based on the General Education Program in Mathematics issued withThông tư 32/2018/TT-BGDĐT, the required achievements in the natural number content for Math 6 are as follows:
Content vtv2 trực tiếp bóng đá hôm nay natural numbers and the set vtv2 trực tiếp bóng đá hôm nay natural numbers. Order in the set vtv2 trực tiếp bóng đá hôm nay natural numbers
- Be able to use the terms set, element belonging (not belonging) to a set; be able to use the ways to describe a set.
- Recognize the set vtv2 trực tiếp bóng đá hôm nay natural numbers.
- Represent natural numbers in the decimal system.
- Represent natural numbers from 1 to 30 using Roman numerals.
- Recognize (relations) order in the set vtv2 trực tiếp bóng đá hôm nay natural numbers; compare two given natural numbers.
Content vtv2 trực tiếp bóng đá hôm nay operations with natural numbers. Exponentiation with natural exponents:
- Carry out operations: addition, subtraction, multiplication, and division within the set vtv2 trực tiếp bóng đá hôm nay natural numbers.
- Apply commutative, associative, and distributive properties vtv2 trực tiếp bóng đá hôm nay multiplication over addition in calculations.
- Perform exponentiation with natural exponents; perform multiplication and division vtv2 trực tiếp bóng đá hôm nay two powers with the same base raised to natural exponents.
- Recognize the order vtv2 trực tiếp bóng đá hôm nay operations.
- Apply properties vtv2 trực tiếp bóng đá hôm nay operations (including exponentiation with natural exponents) to mental calculation and quick calculation in a reasonable way.
- Solve practical problems associated with operations (for example: calculate shopping expenses, determine the amount vtv2 trực tiếp bóng đá hôm nay goods that can be purchased with available money,...)
Content vtv2 trực tiếp bóng đá hôm nay divisibility in the set vtv2 trực tiếp bóng đá hôm nay natural numbers. Prime numbers. Greatest common divisor and least common multiple
- Recognize the relationship vtv2 trực tiếp bóng đá hôm nay divisibility, the concept vtv2 trực tiếp bóng đá hôm nay divisor and multiple.
- Apply divisibility rules for 2, 5, 9, 3 to determine if a given number is divisible by 2, 5, 9, 3.
- Recognize the concept vtv2 trực tiếp bóng đá hôm nay prime numbers, composite numbers.
- Perform factorization vtv2 trực tiếp bóng đá hôm nay a natural number greater than 1 into a product vtv2 trực tiếp bóng đá hôm nay prime factors in simple cases.
- Determine the greatest common divisor, least common multiple; recognize simplest fractions; perform addition and subtraction vtv2 trực tiếp bóng đá hôm nay fractions using greatest common divisor and least common multiple.
- Recognize division with remainder, theorem on division with remainder.
- Apply arithmetic knowledge to solve practical problems (for example: calculate money or amount vtv2 trực tiếp bóng đá hôm nay goods when shopping, determine the necessary items to arrange them according to given rules,...).
How to calculate the average score for Math 6 in Vietnam?
According to Article 9 vtv2 trực tiếp bóng đá hôm nayCircular 22/2021/TT-BGDDT, the method to calculate the average score for Math 6 is as follows:
- The semester average score for Math 6 (hereinafter referred to as SA) for each subject is calculated as follows:
Total continuous assessment points: Sum vtv2 trực tiếp bóng đá hôm nay continuous assessment points.
- The full year average score for Math 6 is calculated as follows:
SA1: Semester 1 average score.
SA2: Semester 2 average score.
