18. Why are slums bigger in some
cities as compared to others?
eg5:
19. issue = topic, often in
the form of a question
hypothesis = temporary explanation
to answer issue.
To be tested in
investigation
20. issue = topic, often in
the form of a question
hypothesis = temporary explanation
to answer issue.
To be tested in
investigation
answers
21. why is it that some schools have air-
conditioned classrooms for their students?
22. why is it that some schools have air-
conditioned classrooms for their students?
perhaps schools with more funds from
alumni are better able to afford air-
conditioned classrooms for their students
23. why are there lesser students in a
primary school class?
24. why are there lesser students in a
primary school class?
perhaps primary school students need
more attention from their teachers.
25. Why is it that some HDB estates have
shorter flats than other estates?
26. Why is it that some HDB estates have
shorter flats than other estates?
perhaps the estates have height limits
as they are in the path of aircrafts.
28. Why are there ethnic enclaves in some
cities?
perhaps they have ethnic enclaves
because the ethnic groups in these cities
are not in harmony with each other.
29. Why are slums bigger in some
cities as compared to others?
30. Why are slums bigger in some
cities as compared to others?
perhaps cities with bigger slums
have greater housing shortage than
others.
31. issue = topic, often in
the form of a question
hypothesis = temporary explanation
to answer issue.
To be tested in
investigation
variables = factors that can be
changed.
answers
32. issue = topic, often in
the form of a question
hypothesis = temporary explanation
to answer issue.
To be tested in
investigation
variables = factors that can be
changed.
relationship
between
variables
answers
33. why is it that some schools have air-
conditioned classrooms for their students?
perhaps schools with more funds from
alumni are better able to afford air-
conditioned classrooms for their students
34. why is it that some schools have air-
conditioned classrooms for their students?
perhaps schools with more funds from
alumni are better able to afford air-
conditioned classrooms for their students
more funds from
alumni
vs less funds from alumni
35. why is it that some schools have air-
conditioned classrooms for their students?
perhaps schools with more funds from
alumni are better able to afford air-
conditioned classrooms for their students
more funds from
alumni
vs less funds from alumni
better able to afford air-
conditioned classrooms
vs less able to afford air conditioned classrooms
36. why are there lesser students in a
primary school class?
perhaps primary school students need
more attention from their teachers.
37. why are there lesser students in a
primary school class?
perhaps primary school students need
more attention from their teachers.
primary school students
vs secondary school students
38. why are there lesser students in a
primary school class?
perhaps primary school students need
more attention from their teachers.
primary school students
vs secondary school students
need
more attention from their teachers
vs need less attention from their teachers
39. Why is it that some HDB estates have
shorter flats than other estates?
perhaps the estates have height limits
as they are in the path of aircrafts.
40. Why is it that some HDB estates have
shorter flats than other estates?
perhaps the estates have height limits
as they are in the path of aircrafts.
have height limits
vs no height limits
41. Why is it that some HDB estates have
shorter flats than other estates?
perhaps the estates have height limits
as they are in the path of aircrafts.
have height limits
vs no height limits
in the path of aircrafts
vs not in the path of aircrafts
42. Why are there ethnic enclaves in some
cities?
perhaps they have ethnic enclaves
because the ethnic groups in these cities
are not in harmony with each other.
43. Why are there ethnic enclaves in some
cities?
perhaps they have ethnic enclaves
because the ethnic groups in these cities
are not in harmony with each other.
have ethnic enclaves
vs no ethnic enclaves
44. Why are there ethnic enclaves in some
cities?
perhaps they have ethnic enclaves
because the ethnic groups in these cities
are not in harmony with each other.
have ethnic enclaves
vs no ethnic enclaves
not in harmony
vs in harmony
45. Why are slums bigger in some
cities as compared to others?
perhaps cities with bigger slums
have greater housing shortage than
others.
46. Why are slums bigger in some
cities as compared to others?
perhaps cities with bigger slums
have greater housing shortage than
others.
with bigger slums
vs with smaller or no slums
47. Why are slums bigger in some
cities as compared to others?
perhaps cities with bigger slums
have greater housing shortage than
others.
with bigger slums
vs with smaller or no slums
greater housing shortage
vs lesser/no housing shortage
49. 1) Identify the issue, hypothesis
and variables for each
scenario
2) Go through the answers in
the subsequent slides.
Try all 3 scenarios first
before checking. NO
CHEATING!!
50. Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
51. issue
Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
52. issue
hypothesis
flats in an estate cost more because
the estate has more facilities
Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
53. issue
hypothesis
flats in an estate cost more because
the estate has more facilities
Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
variables
54. issue
cost of flat (cost more vs cost less)
hypothesis
flats in an estate cost more because
the estate has more facilities
Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
variables
55. issue
cost of flat (cost more vs cost less)
hypothesis
flats in an estate cost more because
the estate has more facilities
amount of facilities in estate (more or less)
Terry wants to find out why the flats in his housing
estate cost more than the housing estate in other
estates. He suspects that this is because his housing
estate has more facilities than other estates.
#1
variables
56. #2
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
57. issue
#2
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
58. issue
hypothesis
the more years a resident lives in the estate,
the more they feel that they belong to the housing estate
#2
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
59. issue
hypothesis
the more years a resident lives in the estate,
the more they feel that they belong to the housing estate
#2
variables
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
60. issue
number of years living in the estate (more or less)
hypothesis
the more years a resident lives in the estate,
the more they feel that they belong to the housing estate
#2
variables
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
61. more they feel they belong to the housing
estate (more or less)
issue
number of years living in the estate (more or less)
hypothesis
the more years a resident lives in the estate,
the more they feel that they belong to the housing estate
#2
variables
Tasha wants to find out why different residents in her
housing estate have different sense of belonging to
the housing estate. She thinks that the more years a
resident lives in the estate, the more they feel that they
belong to the housing estate.
62. #3
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
63. issue
#3
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
64. issue
#3
hypothesis
the closer the residents are to each other,
the more likely they will clean up their own corridor.
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
65. issue
#3
variables
hypothesis
the closer the residents are to each other,
the more likely they will clean up their own corridor.
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
66. issue
closeness of residents (more or less)
#3
variables
hypothesis
the closer the residents are to each other,
the more likely they will clean up their own corridor.
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
67. likelihood of cleaning up their own corridor
(more or less)
issue
closeness of residents (more or less)
#3
variables
hypothesis
the closer the residents are to each other,
the more likely they will clean up their own corridor.
Taufiq wonders why the residents of his estate clean up
their own corridor. He wonders if it is because their
residents are close to each other.
68. are you able to…
define (give meaning of)
- issue
- hypothesis
- variable
identify
-hypothesis when given an issue
- variables in a hypothesis
70. 1) Visit the link shown on the screen. You
will arrive at a google folder page like this
below
71. 2) Choose the file with your laptop no.
Eg: I’m using Laptop 12, so I should be
opening this file
72. 2) Choose the file with your laptop no.
Eg: I’m using Laptop 1, so I should be
opening this file
73. 3) A preview panel will load up. Click on
this icon to open the file in a new tab.
74. 4) You can edit the file now.
There are 3 scenarios to correspond with
your hand out.
75. 4) You can edit the file now.
There are 3 scenarios to correspond with
your hand out.
76. 4) You can edit the file now.
There are 3 scenarios to correspond with
your hand out.
77. 5) For each scenario, experiment what is
the best way to sample to get a
representative sample.
78. 6) eg: I decide to try systematic sampling.
I sample every 10th box.
Key in “X” in the box you want to sample
79. 6) eg: I decide to try systematic sampling.
I sample every 10th box.
Key in “X” in the box you want to sample
80. 7) The spread sheet will count for me
how many of each group I’ve sampled.
81. 7) It will also calculate the proportion to
see if it is the same as the population.
82. 7) It will also show me how many I’ve
sampled so far to see if I’ve met the
required sample size mentioned.
83. 8) Experiment with different sampling
methods until you have achieved a
representative sample.
84. 9) Transfer your successful sampling into
the respective diagram of your handout
using a pencil.
85. 10) Attempt to explain why your chosen
method is the best by cancelling out the
irrelevant underlined words
86. 11) Once you’re done with Scenario 1,
move on to Scenario 2 and Scenario 3.
87. If you’re done early, move on to the
practice questions behind.
Use the helping words in your notes and
pg 1 of your practice to help phrase your
explanations.
