Mathematics is magical. It hides in every corner of our lives and silently affects our lives. The mathematics tabloid in Unit 5 of the first volume of Grade 6 will take you to explore the charm of mathematics and let you know the importance of mathematics in our daily life.
I. Overview of the module
The math course in Unit 5 of the first volume of the sixth grade is mainly fractional multiplication and division and related application problems. By studying this unit, you can learn how to calculate the multiplication and division of fractions and solve practical problems related to fractions in life. In addition, you can also learn some basic mathematical concepts and skills, such as addition and subtraction of fractions, general fractions and reduction of fractions.
Second, the tabloid content.
Fractional multiplication
Fractional multiplication is one of the important contents of Unit 5 in the first volume of Grade 6. It refers to multiplying one fraction by another, and the result is called product. When carrying out fractional multiplication, we need to follow the law of fractional multiplication, that is, numerator multiplies numerator and denominator multiplies denominator. For example, 1/2 and 2/3 are multiplied to get (1/2)×(2/3)= 1/3.
decimal
Fractional division is another important mathematical concept. It means dividing one fraction by another, and the result is called quotient. In fractional division, we need to follow the law of fractional division, that is, dividing by a number is equal to multiplying the reciprocal of this number. For example, if you divide 3/4 by 2/3, you can get (3/4)÷(2/3)=(3/4)×(3/2)=9/8.
application problem
Learning fractional multiplication and division is not only to master mathematical operation methods, but also to solve practical problems in life. In this unit, you will encounter some application problems related to fractions, such as calculating the area or volume of an object and distributing items. By solving these application problems, we can better understand the application of scores in real life.
Expand knowledge:
In real life, scores are widely used. For example, in physics, physical quantities such as speed and acceleration are often expressed by fractions; In economics, interest rate, rate of return, etc. Often involves the calculation of scores; In chemistry, the equilibrium constants of chemical reactions also involve the operation of fractions. Therefore, learning scores well will be of great help to our future study and life.