1, multiplication formula of fraction: multiplication exchange law, multiplication association law, multiplication distribution law.
2. Fractional division formula: reciprocal, zero has no reciprocal, the reciprocal of 1 is itself, and fractional division by integer equals reciprocal multiplied by this integer.
3. Formula of circle area: S=πr? .
4. Formula of circumference: c = 2π r.
5, the percentage ratio calculation formula.
7. Department statistics.
8. Explore the formula of the sum of multiple numbers.
1. In fractional multiplication, students will learn how to use multiplicative commutative law, multiplicative associative law and multiplicative distributive law. These laws are the basis of mathematical operation and are very important for improving students' computing ability and understanding ability. Students also need to master how to multiply fractional integers and how to simplify the result of fractional multiplication to the simplest form.
2. In fractional division, students will learn how to use the concept of reciprocal, and how to divide a fraction by an integer into reciprocal multiplied by the integer. Students also need to master how to reduce and divide fractions, and how to simplify the division results of fractions into the simplest form.
3. In the understanding of circle, students will learn how to draw a circle with compasses and how to calculate the radius, diameter and circumference of a circle. Students also need to understand the concept and approximate value of pi, and how to calculate the circumference and area of a circle with pi.
4. The application of percentage is an important content in the first volume of sixth grade mathematics. Students need to understand the concept and expression of percentage and how to use percentage to solve practical problems. For example, students need to know how to calculate the increase or decrease of percentages and how to convert percentages into decimals or fractions.
5. Fan chart is the basic knowledge of statistics, and students need to know how to use fan chart to represent the distribution of data. Students also need to know how to calculate the area and percentage of the sector and how to make simple data analysis according to the statistical chart of the sector.
6. In the understanding of numbers, students will further deepen their understanding of integers, decimals and fractions. Students also need to know how to express large numbers by scientific notation, how to perform four operations of numbers and simple algebraic operations.