3. CONTENTCONTENT
TO EXPLAIN THE MEANING OFTO EXPLAIN THE MEANING OF
NUMBERSNUMBERS
TO DIFFERENTIATE BETWEENTO DIFFERENTIATE BETWEEN
CARDINAL AND ORDINAL NUMBERSCARDINAL AND ORDINAL NUMBERS
TO CLARIFY THE ROLE OF ONE-TO-TO CLARIFY THE ROLE OF ONE-TO-
ONE MATCHING IN COUNTINGONE MATCHING IN COUNTING
4. THE MEANING OF NUMBERSTHE MEANING OF NUMBERS
The number system is a set ofThe number system is a set of
defined symbols and the numbersdefined symbols and the numbers
they represent, together with thethey represent, together with the
rule for forming larger number fromrule for forming larger number from
those symbolsthose symbols
5. THE MEANING OF NUMBERSTHE MEANING OF NUMBERS
REAL
NUMBERS
IRRATIONAL
NUMBERS
RATIONAL
NUMBERS
Can be written
as decimals
INTEGERS
Whole Numbers
Negative Zero Positive
FRACTIONS
Numbers that part of a whole
2
6. ACTIVITY 1ACTIVITY 1
Divide into 8 groups.Divide into 8 groups.
Name your group from the chart.Name your group from the chart.
Write about your choice.Write about your choice.
PresentPresent
7. CARDINAL AND ORDINALCARDINAL AND ORDINAL
NUMBERSNUMBERS
The number 7 can be used in 3 waysThe number 7 can be used in 3 ways
To tell how manyTo tell how many
To tell where in a rankingTo tell where in a ranking
To name someone or somethingTo name someone or something
8. CARDINAL AND ORDINALCARDINAL AND ORDINAL
NUMBERSNUMBERS
A number used to tell how manyA number used to tell how many
is a Cardinal numberis a Cardinal number are basicare basic
counting numberscounting numbers
1,2,3,4,5,6,7,8,9,10,…1,2,3,4,5,6,7,8,9,10,…
9. CARDINAL AND ORDINALCARDINAL AND ORDINAL
NUMBERSNUMBERS
A number which is used to indicateA number which is used to indicate
where in an ordered list someone orwhere in an ordered list someone or
somethng is called Ordinal numberssomethng is called Ordinal numbers
11stst
(First) ----a runner who comes(First) ----a runner who comes
ahead of anyone.ahead of anyone.
22ndnd
(Second)----(Second)----
33rdrd
(Third)(Third)
44thth
(Fourth)(Fourth)
55thth
(Fifth) and so on…(Fifth) and so on…
10. To name someone or somethingTo name someone or something
A RESIDENCEA RESIDENCE
A PRISONER….W1288A PRISONER….W1288
A CAR REGISTRATION… TAP 18A CAR REGISTRATION… TAP 18
12. QUESTIONSQUESTIONS
When does the mid-term holidayWhen does the mid-term holiday
start?start?
When will the college reopen?When will the college reopen?
When is our National Day?When is our National Day?
13. GROUP ACTIVITYGROUP ACTIVITY
Take any month of the year.Take any month of the year.
Write 3 activities that happened inWrite 3 activities that happened in
that month using the cardinal andthat month using the cardinal and
ordinal numbers.ordinal numbers.
Display their activities.Display their activities.
14. ROLE OF ONE-TO ONEROLE OF ONE-TO ONE
MATCHINGMATCHING
To classify objects by their physicalTo classify objects by their physical
attributesattributes
To compare 2 sets of objects by one-To compare 2 sets of objects by one-
to-one matching and henceto-one matching and hence
determine the relationships:determine the relationships:
as many as,as many as,
not as many as,not as many as,
more than,more than,
fewer thanfewer than
