Sets

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Textbook

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Tamil Nadu text book for Class 9, chapter 4 , pages 17 to 23

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Reference Books

ACTIVITY 1 : 

                                  1. Collect different kinds of objects.

2. Put the all objects in a box. 3. Calling 2 or 3 students and telling them to pick up things of same kind.

  ACTIVITY     2: 
                                                                                                                                                                                  

1. Put the prepared number cards in another box.

        2.Call a student and tell him to pick any 10 numbers.
        3.Call  a student and  tell him to collect natural number
        4. Similarly  we can call many students to come and ask them to collect odd, even numbers etc.
DEVELOPING  QUESTIONS:
                               1. Can you call that mixing group of objects by a particular  name?
                              2. Does any number is repeated while collecting numbers?
                              3. What is the difference between before and after grouping the objects?

 QUESTIONS:
                                

                                 1.Can we say that whole group of objects is a set ?
                                 2..Define a set.
                                 3. Give an example for a set.

Teaching Outlines

Concept #1.Introduction to Sets

Learning objectives

1. Differentiate between a group and a set
2. To identify a set
3. To give examples for a set.

Notes for teachers

Helping the children in the identification of a set

Activity No #1 Making Sets

1. Mixing different kinds of objects in a box .
2. Mixing different kinds of number cards in a box.

Click to Comment

• Materials/ Resources needed
  

Scales, pencils, pens, toys of birds and animals, different coloured bangles. , number cards and 2 boxes. Required time - 20 minutes

• Prerequisites/Instructions, if any
  

To be careful about glass bangles.

• Multimedia resources
  
• Website interactives/ links/ simulations

Click here to view explanation about the definition of set. http://www.mathsisfun.com/sets/sets-introduction.html

• Process/ Developmental Questions
• Evaluation
• Question Corner

Activity No #2.

Click to Comment

• Materials/ Resources needed
• Prerequisites/Instructions, if any
• Multimedia resources
• Website interactives/ links/ simulations
• Process

1st step

1. Collect different kinds of objects.
2. Put the all objects in a box.
3. Calling 2 or 3 students and telling them to pick up things of same kind.

2nd step

1. Put the prepared number cards in another box.
2. Call a student and tell him to pick any 10 numbers.
3. Call a student and tell him to collect natural number
4. Similarly we can call many students to come and ask them to collect odd, even numbers etc.

• Developmental Questions

1. Can you call that mixing group of objects by a particular name?
2. Does any number is repeated while collecting numbers?
3. What is the difference between before and after grouping the objects?

• Evaluation

1. Can we say that whole group of objects is a set ?
2. Define a set.
3. Give an example for a set.

• Question Corner

Concept #2.Representation of sets.(A)Rooster method:

Sets can be represented in two different ways: Rooster method and Rule method.

Activity No #1.

Click to Comment

• Materials/ Resources needed
• Prerequisites/Instructions, if any
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
• Evaluation
• Question Corner

Activity No #2.

Click to Comment

• Materials/ Resources needed
• Prerequisites/Instructions, if any
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
• Evaluation
• Question Corner

concept #2(B):Set builder method or rule method

Activity No #1.

Click to Comment

• Materials/ Resources needed
• Prerequisites/Instructions, if any
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
• Evaluation
• Question Corner

Activity No #2.

Click to Comment

• Materials/ Resources needed
• Prerequisites/Instructions, if any
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
• Evaluation
• Question Corner

Fun corner

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