Mathematics Grade 8 1 Date: February 4,2010 Topic: sets

Mathematics Grade 8 1

Date: February 4,2010

Topic: sets

Sets Equal and equivalent sets

EQUAL SETS

SET A SET B

What are equal sets?

Equal sets are sets that have the same elements, however the elements does not have to be in the same order.

Equivalent sets

Observe the following sets

EQUAL SET

SET A SET B

EQUIVALENT SET

SET A SET B

SET C SET D

What are equivalent sets ?

Equivalent sets are sets that have the same number of elements, however the elements are not the same.

LISTEN TO THE FOLLOWING SCENARIO:

Scenario 1

LaysMacker

elCorn Beef

Crackers

MiloSausag

e

Andre’s items Simona’s items

Scenario 2

watch

Patrice

Kerry-Ann Allen

Activity 1

Write whether the following sets are equal or equivalent

5, 10, 20, 98, 25 A= B= 56,76,2,57,901.

2.

C= 3,5,2,79,6,8,1 D=

8,1,3,5,79,8,2

3. E= 2,4,6,8,10 F= 2,4,6,8,10

4.

G= 5,10,15,20,35,30 H= 4,8,16,21,24,27

5. I= 9,8,7,6,5 J= 4,3,2,1,10

Activity 2

Write a equivalent and a equal set for each of the following;

1,2,3,4,5

2.

30,67,3,6,78,65,

3. 10,20,30,40,50,60

1.

THANK YOU !