Quadratic trinomial, 8 grade

Oskemen Nurorda school-lyceum

Date: 

Teacher’s name: Assel Dosmakhan

Grade: 8А

Number present:

Number absent: 

Theme of the lesson:

Quadratic equation

Learning objectives

8.2.2.1-To know the definition of quadratic equation;

8.2.2.2-To distinguish the types of quadratic equations;

Lesson objectives

All learners will be able to:

• understand the concept of the root of a quadratic trinomial;

• Allocate a perfect square from a quadratic trinomial;

• Factoring a quadratic polynomial;

Lesson structure

Planned timings

Teacher activity

Student

activity

Evaluation

Resources

Beginning

The lesson greeting.

The teacher sets the lesson objectives, 

letting students know what to anticipate from the lesson.

Lead-in.

Then to create a positive learning environment the teacher asks students

to start the lesson giving each other compliments about appearance, job performance, talent, etc. and also practice accepting compliments.

Students greet the teacher

Give each other compliments 

Individual evaluation

Verbal evaluation

Course book

Middle

In course book on page 46-47-48-49

Firstly students learn to mean in Kazakh

or Russian of some English words.

Quadratic trinomial:

квадрат үшмүше/ квадратный трехчлен

Root:түбір/корень

Irreducible:жіктелмейтін/несокращаемый

Leading coefficient:үлкен коэффициент/ старший коэффициент

Procedure:тертіп/процедура

Suitable: ыңғайлы/подходящее

Collective discussion of thought-provoking questions with the aim of connecting a new lesson with the topic passed through the" brainstorming " method.

Questions:

1. What is a polynomial?

2. What is the degree of a polynomial?

3. What is a quadratic equation?

4. What is the discriminant of a quadratic equation?

5. How many roots can a quadratic equation have?

Then teacher explains quadratic trinomials, teaches to factorize some quadratic trinomials.

1)Factoring Trinomials of the Form:

We can follow a procedure to factorize a

reducible quadratic trinomial

inti two binomials;

1. Write x as the first term of each binomial

2. Find two factors of c whose sum is b.

2)Factoring Trinomials of the Form:

If the leading coefficient of a quadratic trinomial is not 1, we can use a different procedure to find the two binomial factors.

Activity: Use the diagram shown below.

Students answer the questions and conduct a collective mutual discussion, the teacher introduces the students to the topic and purpose of the lesson.

Students learn to factorize a quadratic trinomial.

Students use the diagram for factorization.

1. Explain how the diagram models the factorization

2. Draw a diagram that models the factorization

Mutual evaluation

Course book

PPT

Whiteboard

PPT

Whiteboard

End

Reflection

«Instagram assessment » method

- like it

- see it

- want to live comments

Sts reflect the lesson

Peer assessment