"Monomials and Polynomials" PPT courseware

Description

"Monomials and Polynomials" PPT courseware

learning target:

1. Understand the relevant concepts of integers and be able to identify monomials, polynomials and integers.

2. Be able to tell the coefficients and degrees of a monomial, the coefficients and degrees of the terms of a polynomial, and the number of terms and degrees of a polynomial.

3. Develop the ability of observation, induction, generalization and language expression while participating in the process of identifying monomials and polynomials.

Observe the algebraic expressions obtained above and the algebraic expressions learned in Chapter 5. What operations do they contain?

For letters, algebraic expressions that only contain addition, subtraction, multiplication, and exponentiation operations are called integers.

Among them, integers that do not contain addition or subtraction operations are called monomials.

12, 0, a, b are monomials?

In particular, a letter or a number by itself is also a monomial

Coefficients and degrees of monomials

coefficient of monomial

The numerical factors in a monomial are called the coefficients of the monomial.

1. The monomial coefficient includes the symbol before it;

2. When the monomial coefficient is 1 or -1, the 1 can be omitted, but when it is "-1", the "-" sign cannot be omitted.

Concepts related to polynomials

Polynomial: The sum of several monomials is called a polynomial.

Terms and constant terms: Each monomial in a polynomial is called a term of the polynomial.

Terms without letters are called constant terms.

Note: Each term in the polynomial contains the sign preceding it.

Degree of polynomial:

The degree of the highest degree term in a polynomial is called the degree of the polynomial.

power enhanced:

Given the polynomial _________, answer the following questions:

(1) How many numbers does this polynomial have? point out all its terms;

(2) Which term has the highest degree of this polynomial? Write its coefficient and degree;

(3) Does this polynomial have constant terms? If so, which one?

Summary: What did you learn in this lesson?

Keywords: Monomials and polynomials teaching courseware, Qingdao edition seventh grade mathematics volume PPT courseware download, seventh grade mathematics slide courseware download, monomials and polynomials PPT courseware download, .PPT format;

For more information about the "Monomials and Polynomials" PPT courseware, please click the Monomials and Polynomials ppt tab.

File Info

Update Time: 2024-11-22

This template belongs to Mathematics courseware Qingdao Edition Seventh Grade Mathematics Volume 1 industry PPT template

Preview