Ашық сабақ "Oxides"

Theme of the Lesson:

Oxides

Subject : chemistry

Teacher name: Ayazbaeva Gulbarshyn

Date: 01.04.18

Class: 8 А

Lesson objectives

Give the сoncepts of Oxides and their classification, about properties

Criteria assessment

Learners achieve the aim if:

can write classification oxides

can write chemical properties

Values

Group work- collective, responsibility for command work result;

Individual work- learn forever, honesty while doing self work

Connection with other subjects

Science: physics, biology

Org moment

Warm - up

Good moorning! who is absent? who's on duty? The mossay method is divided into groups .

I. "Brain Attack"

1. Types of elements?

2. The general formul of elements?

3. What is nonmetals?

4. With what do metals react?

Division into the group by the Mosaic method

Let is watch video

Prezentations

What is an Oxides?

Oxide, any of a large and important class of chemical compounds in which oxygen is combined with another element. With the exception of the lighter inert gases (helium [He], neon [Ne], argon [Ar], and krypton[Kr]), oxygen (O) forms at least one binary oxide with each of the elements.

Practice

grop work

Lab works.

8 properties of oxides

Introduction

Oxides change the colours of indicators. The are corrosive.They react with metals,bases and some of the salts.

Materials Sulfuric acid solution ,methylorang indicator ,piece of chalk, aluminium pieces.

Procedure

1. Pour 20ml of soduim solution into the beaker,check whith methylorang indicator .

2. Add 3-4 pieces of aluminium pieces to the sulfuric acid solution .

3.Repeat procedure with adding 5 g of chalk into solution of Sulfuric acid .

Observation and guestions

1. Write eguation of chemical reaction

2. Try to explain colour change of litmus paper indicator after the reaction.

Assessment criteria

Descriptors

fully describes oxides

end of lesson

will respond to questions on a new topic by using the pen medium

home work

Oxides

End of the lesson

reflection

writes the effect on the lessons to the smileys