Teacher's Guide Module 1 - Maths Excellence

.......................ACTIVITY 2.7
This activity exposes the learners to a variety of methods for addition. The learners may
select the method that they find easiest from these.
.......................ACTIVITY 2.8
Learners must work without a pocket calculator, but may use it afterwards to check their
answers.
.......................ACTIVITY 2.9
Adapt the allocated time as you think fit.
.....................ACTIVITY 2.10
First explain how the pocket calculator’s memory keys work during a class discussion
before attempting the activity. Allow learners to compare their pocket calculators with
each other and encourage them to test and use the keys as the class discussion
progresses. Do some examples with the learners by way of a trial run. (Hint: It is easier
to calculate the answers if the last bracket in the computation of the sum is done first and
stored in the memory.)
.....................ACTIVITY 2.11
According to the minimum requirements of the RNCS, two “investigations” are required
per semester. This activity can be placed in the learner’s portfolio for record purposes.
The purpose of this activity is to investigate the different cash slips that we receive every
day wherever we buy things, to analyse them and finally to decide, giving reasons, which
are the best examples of such slips.
LEARNING UNIT 3
.......................ACTIVITY 3.1
Before starting with Activity 1, the learners can do quite a bit of mental calculation with
small minuends (orally, with teacher asking the questions), e.g. 34 – 5; 26 – 3; 52 – 4;
etc.). A certain time limit can be set in Activity 2 (depending how fast / how slowly) the
learner’s progress.
.......................ACTIVITY 3.2
Once this activity has been completed, learners’ knowledge with regard to Learning Unit 2
can be tested. Learners can do the same exercise with Roman numbers (see Activity
2.3).
.......................ACTIVITY 3.3
It is important that learners do this activity with full understanding of terminology (e.g. they
should know that “decrease by” means “subtract”). The pocket calculator can be used to
check the answers in this activity.