"Formula of Square Difference" Operation of Integers PPT Courseware 2

Description

"Formula of Square Difference" Operation of Integers PPT Courseware 2

1. Analysis of teaching materials

1. The status and role of teaching materials;

2. Key points and difficulties in teaching;

3. The goal of teaching;

The status and role of teaching materials

The square difference formula is not only an extension of the students' previously learned knowledge of merging similar terms and polynomial multiplication, but also pave the way for the derivation of the complete square formula in the next lesson, which serves as a link between the past and the next.

The square difference formula is the first formula that students encounter in the algebra section that uses abstract mathematical symbols to perform operations. It is of great significance to the transformation of students' thinking methods.

The focus of teaching: Understand and flexibly use formulas

Difficulties in teaching: derivation of the square difference formula, accurate understanding and mastery of the structural characteristics of the formula

(a+b)(a-b)=a²-b²

Structure

The right side is the squared difference of the two terms in the multiplication, that is: (the same term) 2 - (the opposite term) 2

On the left is two binomials multiplied, and one term is exactly the same; the other term is the opposite of each other.

The letters a and b can be numbers, and can also represent monomials or polynomials

Practice in class

(1) (2-3x)(3x+2)

(2) (-5x²+3)(-5x²-3)

(3) (-3-5b)(-3-5b)

Steps: 1. Judgment; 2. Adjustment; 3. Step-by-step solution.

(Note: Use parentheses well; perform power operations.)

Class summary

1) Master the content of the squared difference formula

2) Understand the meaning of the letters in the squared difference formula

Keywords: teaching courseware for the operation of integers, teaching courseware for the square difference formula, Beijing Normal University edition seventh-grade mathematics second volume PPT courseware, download of the seventh-grade mathematics slide courseware, downloading the operation PPT courseware for the integer, downloading the squared difference formula PPT courseware,. ppt format

For more information about the PPT courseware "Operations of Square Difference Formulas and Integers", please click the "Operations of Square Differences Formula ppt Integers" ppt tag.

"Formula of Squared Differences" PPT courseware 2:

"Formula of Square Differences" PPT Courseware 2 How do polynomials multiply? (a+b)(m+n)=am+an+bm+bn (x + 1)( x-1) =x2-1x+1X-11 =x2-1 Calculate and compare to see who can calculate better Calculate the following questions quickly and accurately ① (x +..

"Formula of Square Differences" PPT courseware:

"Formula of Square Differences" PPT courseware. Can you answer the multiplication rule of polynomials? (a+b)(m+n)=am+an+bm+bn Calculate and compare to see who can calculate faster and more accurately ( a+b)(a-b)=a2-b2 ①(x+2)( x-2) ②(1+3a)( 1-3a) ③(m+5n)( m..

"Square Difference Formula" Operation of Integers PPT Courseware 3:

"Formula of Square Differences" Operation of Integers PPT Courseware 3 Teaching Objectives Knowledge and Abilities 1. Understand the meaning of the square difference formula; 2. Master the structural characteristics of the square difference formula; 3. Correctly use the squared difference formula to calculate; 4. The rule of adding brackets; 5. Use Tiankuo..

File Info

Update Time: 2024-09-27

This template belongs to Mathematics courseware Beijing Normal University seventh grade mathematics volume 2 industry PPT template

Preview