Химия пәнінен ашық сабақ өткізу материалы

SHORT PERIOD LESSON PLAN

CHAPTER

Chemical bonds

SCHOOL

№7 by K.Spataev

NAME SURNAME

Aizhan Nurumbetkhodzhaeva

ATTENDED

SUBJECT

chemistry

ABSENT

GRADE

8B

DATE

TOPIC

Covalent bond

OBJECTIVES

1.You will understand the mechanism of formation of polar and nonpolar covalent bondbased on the concept of electronegativity and valency.

2.You will draw the dot and cross diagrams of covalent bonds.

CRITICAL THINKING SKILLS

1. Understand the mechanism of formation of polar and nonpolar covalent bondbased on the concept of electronegativity and valency.

2. Draw the dot and cross diagrams of covalent bonds.

LANGUAGE AIMS

The new words: to attract – өзіне тарту, difference - айырмашылық, similar – ұқсас, sharing - бөлісу, covalent - ковалентті, polar - полярлы, nonpolar - полярсыз, value – өлшем.

SUBJECT INTERCONNECTION

Physics, biology.

LESSON PROCESS

STAGES OF THE LESSON

PLANNED ACTIVITIES

RESOURCES

BEGINNING

Good morning, everybody. How are you? Why is absent? I wish you’re a nice day. What is date today?

Studentbook, workbook, task, board

MIDDLE

The stimulation questions: How do chemical bonds form between nonmetal atoms?

We now will play a game that is named “ loop activity.”

The rules of game are such:

1.In the overhead half of paper answers and in the lower half of paper questions

2.Who has an answer that must heave up a hand and say “I have”

3.Reading the answer here sets the question.

4. For whom word start? please begin.

Thems our lesson: Chemical bonds

Nonpolar covalent bonds

These are bonds that are formed between two nonmetal atoms with the same electronegativity values. For example, the bonds in H2 (H-H), N2 molecule (N= N), Cl2 molecule (Cl - Cl), and O2 molecule (O= O) are all nonpolar covalent bonds.

Polar covalent bonds

These are bonds that are formed between two nonmetal atoms with different electronegativity values. For example, let's examine the covalent bond between the H and Cl atoms

Example 1. Work in pairs and write a sentence for each word written below

Words

Sentence

Noble gas

Groups

Element

Valence

Metal

Period

Noble gas located VIII A groups

Each vertical column in the Periodic table is called a group.

The modern periodic table contains all known elements.