Geography · Maths

Read the data: climate graph and population pyramid

Interpret two invented datasets using graphs, calculations and written explanations. Pupils read a Brightwater climate graph and monthly table, then examine a population pyramid for an invented town, calculate totals and percentages, and justify a possible service need with data.

Brightwater: invented climate data for practice. Read rainfall bars and the temperature line using their separate axes.

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Read the data: climate graph and population pyramid

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Page 1

GEOGRAPHY AND MATHS
AGES 14 TO 16
CLIMATE GRAPHS
Graph and data interpretation
Read the Brightwater climate graph, then work out the facts.
NAME
CLASS
DATE
LEARNING GOAL
Read values from a graph, calculate from them
and describe the pattern.
SUCCESS CRITERIA
I can read the right axis for each line.
I can calculate with units.
E N T R Y
1
Climate of Brightwater
Data invented for practice
Rainfall (mm): bars
Temperature (°C): line
0
0
20
5
40
10
60
15
80
20
100
25
J
F
M
A
M
J
J
A
S
O
N
D
Month
Month
Temp °C
Rain mm
Jan
4
60
Feb
5
50
Mar
8
45
Apr
11
40
May
15
50
Jun
18
55
Jul
21
50
Aug
20
60
Sep
17
60
Oct
12
75
Nov
7
80
Dec
5
70
E N T R Y
2
Read and calculate
Write units
1
Which month is the warmest?
2
Lowest temperature and
its month?
°C
3
Temperature range (highest −
lowest)?
°C
4
Wettest month and its
rainfall?
mm
5
Driest month and its
rainfall?
mm
6
Wettest minus driest rainfall?
mm
7
Total yearly rainfall (add all
months)?
mm
8
Mean temperature, June to August
(1 d.p.)?
°C
9
Describe the pattern of rainfall through the year in two sentences. Use numbers.
10
This graph shows one year of data. What else would you want to know?
Graph and data interpretation
Page 1 of 2

Page 2

GEOGRAPHY AND MATHS
AGES 14 TO 16
POPULATION
Reading a population pyramid
NAME
CLASS
DATE
E N T R Y
1
An invented town
Hundreds of people
MALES
FEMALES
Age group
0
0
5
5
10
10
15
15
3
5
75 and over
8
9
60 to 74
11
12
45 to 59
13
13
30 to 44
14
14
15 to 29
12
11
0 to 14
Population (hundreds of people)
Age group
Males
Females
0 to 14
12
11
15 to 29
14
14
30 to 44
13
13
45 to 59
11
12
60 to 74
8
9
75 and over
3
5
Total
61
64
HUNDRED
125 hundred people in
total, which is 12 500
people.
125
E N T R Y
2
Read and calculate
Write units
1
Age group with the most males?
hundred
2
Age group with the fewest females?
hundred
3
Number aged 75 and over?
hundred
people
4
% aged 75 and over?
%
5
% aged 0 to 14?
%
NOTES TO SELF
CHECK THE AXIS
Read the bar end, then check
the scale for the number.
HUNDREDS
The chart counts in
hundreds. 8 hundred is 800
people.
6
Describe the shape. Suggest one reason for more older women than older men.
7
Choose one service this town may need. Justify your choice with data.
HEALTH CARE
SCHOOLS
BUSES
HOUSING
MY OWN IDEA
Graph and data interpretation
Page 2 of 2

A teaching sequence

Read values from climate and population graphs, calculate with units and support an interpretation with data.

Brightwater: invented climate data for practice. Read rainfall bars and the temperature line using their separate axes.

Read the complete material

Read the invented climate axes and table

Read the invented Brightwater climate graph and monthly table for warmest month, extremes, range, wettest and driest months, total rainfall and summer mean.

Which scale and unit belong to the temperature line and rainfall bars?

Brightwater: invented climate data for practice. Read rainfall bars and the temperature line using their separate axes.

Read the complete material

Describe the rainfall pattern with values

Describe the rainfall pattern using figures and note what more than one year would help explain.

What could further years show that this single invented year cannot?

Calculate from the population groups

For the invented town’s population pyramid, identify age groups and calculate the requested total and percentages with units.

Have you converted hundreds to people and used the correct total for percentages?

Propose a service through data

Suggest why older women may outnumber older men, then choose a service and justify it with data. Treat causes as hypotheses.

Which figure supports the need, and which causal explanation remains a hypothesis?

Before you teach

Look for the thinking behind an answer, choose the support your class needs and leave room for an independent response.

What to look for

Check that pupils use the rainfall axis for bars and temperature axis for the line, then include correct units. Verify arithmetic from the printed tables. For interpretations, look for a claim supported by a value and a sensible note about limits or additional information needed.

Give a little support

Provide a colour key or point to the two climate axes before pupils answer. Work through one table lookup and one percentage calculation. Let pupils annotate the graph and write a claim-evidence sentence before drafting a longer explanation.

Take the idea further

Ask pupils to compare the climate and population evidence and propose what additional data would strengthen a service plan. They can calculate a different age-group percentage or explain why a population pyramid cannot, by itself, prove a cause.

Things to keep in mind

Both datasets are invented and do not describe a real town or climate. A graph can show patterns but does not establish causes. Population categories and explanations are simplified; use additional context and reliable sources for real-world conclusions.

Keep the idea. Make it yours.

Bring your topic, learning goal and class context to PLAI™, then review what you create.

Make one for my class

Ideas to try with your class

Sample teaching perspectives on what to try, what to adapt and what to watch for.

🤔

Good Question

The two-page worksheet pairs an invented Brightwater climate graph with an invented population pyramid. Pupils read temperature and rainfall from separate axes, calculate yearly summaries with units and then interpret age-group data.

🫖

Chalk & Chai

For ages 14 to 16, the climate section asks for warmest and coldest months, range, wettest and driest rainfall, total, mean and a two-sentence pattern. The population page shifts to reading a different graph form.

📋

Planning List

Use the monthly table beside the climate graph to verify a read value before calculating. Pupils can label the axis used for each quantity, reducing confusion between the rainfall bars and temperature line.

🔍

Clear Example

Both datasets are invented for practice, not evidence about a real place. Keep that label in any extracted answer or graph, and support each interpretation with values from the correct axis.

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