4. MATH W-3.ppt for grade two mathematics

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1. Objectives:
Visualize and
Compare Numbers up
to 1 000 using
Relation Symbols

2. Comparing number

3. Hello everyone!
My name is
Allie the Alligator

4. Before we start, lets learn some
Vocabulary
words

5. •Compare - to weigh against
•
is greater than - 6 > 2
•
is less than - 2 < 6
•is equal to - 2 = 2

6. Now you know few vocabulary
words in this lesson.
Lets learn
More!

7. I’m going to help you learn all
about my special symbols.
They look like this!
< >

8. Take a look at this!
Less than Greater than
< >

9. The symbols are a bit like my mouth
I am a hungry alligator and I always
want to eat the biggest number.
Smallest number Biggest number
4 < 10

10. Important note!
Always look at the first set of numbers
from the left side before comparing.

11. Need some more help?
64
6 is bigger than 4, so my mouth
wants to eat it!

12. On your whiteboards can you put my
mouth facing the right direction?
Remember I want to eat the biggest
number!
32 127

13. 32 127
Well done! My mouth is open to eat
127 because it’s bigger than 32.

14. What about this?
130 99

15. 130 99
Well done! My mouth is open to eat
130 because its bigger than 99.

16. 2 2
Now, What if both numbers are
the same?
I don’t know which
one to eat?

17. 2 = 2
You’re right!
If both numbers
are the same, it
means they are
equal.

18. Lets try these
examples.

19. Less than or Greater than
Remember: Hungry alligator always eat more.
251 152
Greater than

20. Less than or Greater than
Remember: Hungry alligator always eat more.
425 804
less than

21. Less than or Greater than
Remember: Hungry alligator always eat more.
861 816
Greater than

22. Less than or Greater than
Remember: Hungry alligator always eat more.
982 992
less than

23. 564 564
equal

24. Lets watch this!
Number Gator song

25. Now go and
show me how
much you have
learnt.