"Formulas and Equations" Numbers and Algebra PPT Courseware

Description

"Formulas and Equations" Numbers and Algebra PPT Courseware

1. Introduce situations and review old knowledge

(1) Formulas containing letters represent quantities and quantitative relationships, operating laws and calculation formulas

Show the information: There are a boy and b girl in the school dance club. How many people are there in total?

Default: �a＋b�人

Present the information: If each person gets a dancing fan priced at 10 yuan, how many yuan will it cost in total?

Default:

① 10�a＋b� yuan

②�10a＋10b� yuan

2. Sorting out old knowledge and exploring connections

Question 1: We have learned to use letters to express quantities concisely. In addition, we can also use letters to express quantitative relationships, operational laws, calculation formulas, etc. Look carefully at the table below. What do you use the letters to represent? Write it in the table.

Question 2: Think about it, in an equation containing letters, numbers and letters, letters and letters are multiplied. What should you pay attention to when writing?

Default:

①In formulas containing letters, the multiplication sign between the number and the letter can be written as "·", or it can be omitted.

②When the multiplication sign is omitted, the number should be written in front of the letter.

③The multiplication sign between numbers cannot be omitted. The plus sign, minus sign, and division sign cannot be omitted.

(2) Equations and equations

Present information:

1.9＋7＝8.9 3x＋6＞9 2.5x－1.5＝1

Question 4: What kind of formula is an equation?

Default: An expression that expresses the equality between two numbers or two algebraic expressions is called an equation.

Question 5: Just now you have classified these equations. Let’s continue to look at the equation category. If we divide them again, how do you plan to divide them? Tell me why.

Default: Those containing x are divided into one category; the rest are divided into one category.

Question 6: What is the name of this type of equation containing x?

Default: Eq.

Question 7: What is an equation?

Default: An equation with unknown numbers is called an equation.

3. Consolidate practice

2. Solve problems by making equations.

Xiaoping kicked 42 shuttlecocks in the shuttlecock competition. The number of shuttlecocks she kicked was 3/4 of Xiaoyun's. How many times did Xiaoyun kick?

4. Assign homework

Homework: Exercise 16 on page 82, Questions 1 and 5.

Page 83, Exercise 16, Question 14.

Keywords: Equations and Equations teaching courseware, People’s Education Press sixth grade mathematics courseware volume 2, Sixth grade mathematics slide courseware download, Equations and Equations PPT courseware download, .ppt format

For more information about the "Equations and Equations Numbers and Algebra" PPT courseware, please click the "Equations and Equations ppt Numbers and Algebra ppt" tab.

"Formulas and Equations" PPT:

"Formula and Equations" PPT Part One content: Class introduction: WC, km, kg, S= (a+b)h2, a+b= b+a Use letters to express numbers, which is relatively concise and clear. Newly granted letters are used to express quantitative relationships. Letters are used to express operation laws. Letters are used to express calculation formulas..

"Equations and Equations" Equations Flash animation courseware:

"Equations and Equations" Equations Flash Animation Courseware This courseware is the teaching material of Equations and Equations Flash Animation Courseware for Unit 8 of the fifth grade mathematics volume of the Hebei Education Edition. The content is vivid and vivid, please download! Keywords: Equation teaching courseware, teaching of equations and equations..

"Formulas and Equations" general review PPT courseware:

"Equations and Equations" general review PPT courseware ① Formulas containing letters: a+b, a-486, 8X, etc. ② Inequalities: 3+5＞7, 1+3＜5, 5a-40＞16, etc. ③ Equations : For example: 1+2=3, 99+1=100, 4X=24, 8x-4.8x=1.6, etc. ④ Equation: 4X=24..

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Update Time: 2024-06-30

This template belongs to Mathematics courseware People's Education Press Mathematics Volume 2 for Sixth Grade industry PPT template

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