GRADE 09 MATHEMATICS
TERM 3 PROJECT
AUGUST 2024
GRADE 09 MATHEMATICS
SECTION A
ACTIVITY 1:
1.1.
MATCHING DESCRIPTIONS TO GRAPHS:
TEACHERS NOTES
Purpose The first activity gives leamers an opportunity to work in groups to solve
the problem of matching graphs to their descriptions. The main purpose of the
activity is to assist learners to develop an awareness of the rate of change
(gradient); and to recognise the rate of change that is visible in the graph. Try to
keep the groups sizes small; have no more than four learners in a group.
Preparation
You will need to photocopy the page of graphs and descriptions on the next page
and cut them up so that each group has a complete set.
The instructions to learners are:
• You are given descriptions of the temperature changes on five different days.
• You are also given five different graphs showing the temperature changes from
morning to evening.
•As a title for each graph, write down which of the above days is possibly
represented by the graph. Points for discussion:
How did they work out which description matched which graph? What were the
'clues' in the descriptions that helped them to do so?
•The axes of the graphs were labelled, but there was no scale given. What would
they suggest as a scale for the axes?
ACTIVITY 1: MATCHING DESCRIPTIONS TO GRAPHS
Day A: It is already warm early in
the morning. The temperature does
not change much during the day,
but late in the afternoon, a breeze
causes the temperature to drop
quite sharply
Day C: It is warm in the early
morning and the temperature
remains about the same until
midday, then the temperature drops
slowly during the afternoon.
Day B: It is very cold early in the morning,
but it gets quite hot soon after the sun gets
up. By midday, a cold wind comes up and
the temperature drops until late in the
afternoon. The wind then stops and it gets
warmer again into the evening.
Day D: It is cold in the early morning and it
remains cold for the whole day, except
for
a
short time after lunch when the sun
comes
out for a while.
TERM 3 PROJECT
AUGUST 2024
Day E: It is warm early in the
morning, but the temperature drops
sharply soon after sunrise and
remains low until mid-aftemoon,
when it slowly warms up a little.
Temp
Time
2
Temp
Time
4.
Temp
Temp
Temp
Time
Time
Time
5marks
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