# Sets

Philosophy of Mathematics |

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# Concept Map

# Textbook

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- Karnataka text book for Class 10 ,Chapter 02-Sets
- Tamil Nadu text book for Class 9, chapter 4 , pages 17 to 23

# Additional information

## Useful websites

- Wikipedia page for Set
- This web gives basic ideas about sets mathsisfun.com
- Video on union and itersection of sets.

- To get the videos on sets in kannada shared by Yakub Koyyur GHS Nada, click here

## 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.

ACTIVITY2:

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

DEVELOPING QUESTIONS:

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

QUESTIONS:

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

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# Teaching Outlines

## Concept #**1.Introduction to Sets**

### Learning objectives

- Differentiate between a group and a set
- To identify a set
- To give different examples for a set.
- To find different type of set.

### Notes for teachers

Helping the children in the identification of a set by making groups of students

### Activity No #1 Making Sets

- Mixing different kinds of objects in a box .
- Mixing different kinds of number cards in a box.

- 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.

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

**1st step**

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

**2nd step**

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

- Developmental Questions

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

- Evaluation

- Can we say that whole group of objects is a set ?
- Define a set.
- 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.

### Learning objectives

- To learn writing a set in roaster method.
- To learn writing a set in rule method.

### Notes for teachers

Not all sets can be inter-convertible from one method to other

### Activity No #1.

- Materials/ Resources needed

- Prerequisites/Instructions, if any
- Multimedia resources

- Website interactives/ links/ simulations

- Process/ Developmental Questions
- Evaluation
- Question Corner

### Activity No #2.

- 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**

### Learning objectives

### Notes for teachers

### Activity No #1.

### Activity No #2.

# Assessment activities for CCE

- This cce Activity is shared by Ramamurthi, government high school, Devalaapura,Mysore taluk click here to get the ativity.

# Project Ideas

# Fun corner

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