LESSON TRANSCRIPT

INDUCTIVE THINKING MODEL

Name of School        : Model Boys HSS                                        Standard         : IX                   Name of Teacher    : Basheer. S                                             Date                : 11/07/2014  Subject                    : Chemistry                                                                                                    Unit                          : Periodic Table & Chemical Bonding                                                          Topic                      : Inert gas                                                     

 

Name of Concept: Inert gas

Objective:

Ø  The pupil develops observation skill. Identification of different types of inert gases.

Ø  Generalization of properties of inert gases.

Ø  Pupil develops hypothesizing.

Ø  Predicting results.

 

Phase 1

Data categorization:

 

T: What are the common properties of elements such as Argon, Oxygen, Carbon, Krypton, Helium, Nitrogen, etc?

            S: They all are non-metals.

            T: Can you say some other non metal?

            S: Yes, Neon, Hydrogen, Sulpher, Chlorine etc.

            T: Can you group these examples and name them according to their similarity.

 

Group A	Group B
Helium	Oxygen
Neon	Carbon
Argon	Nitrogen
Krypton	Chlorine

 

Phase 2

Interpretation of Data:

 

T: Let me analyze each group of examples and know more about them. What is the peculiarity of elements in each group A.?

            S: They are last group elements.

            T: Anything more.

            S: Their Outer most shell are completely filled.

            T: Yes, they are called Inert gases. What about Group B?

            S: Group element B does not have a completely filled outermost shell.

            T: Yes, can you identify the property of inert gases?

            S: No, teacher.

            T: Their outermost shell is completely filled. Hence they are stable and does not take part in chemical reaction. So they are called inert gases. They are also known as noble gases.

 

Phase 3

Application of Generalization

 

T: Now, I will give examples of different types of elements. You must name ifs type. Sodium.

            S: Metal.

            T: Why it’s called a metal?

            S: It can donate electrons.

            T: Yes, now Xenon.

            S: Inert gas

            T: Why it’s called inert gas?

            S: It’s stable and do not take part in chemical reaction.

            T: Yes, very good. Radon.

            S: Inert gas.

            T: Potassium.

            S: Metal.

            T: Yes, so inert gases are those elements which are least reactive and most stable.

 

 

 

 

 

           

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