Page 71 - SK Year 2 Mathematics DLP (Part 2)

LET’S EXPLORE

Method

1 Weigh a big 2 Estimate the mass 3 Weigh the small

marble. of a small marble. marble to find
its actual mass.

4 Use the big marbleʼs mass to estimate the mass of
other objects.

5 Weigh the objects. Record the actual mass.

6 Compare both mass.

Object Estimated mass Actual mass

Small marble g g

Aluminium can g g

Magazine g g

LETʼS ANSWER

Estimate the mass of each object.

a b

240 g g 10 kg kg

• Guide pupils to estimate and weigh mass of objects in groups.
TEACHER’S • Discuss with pupils the importance of estimating the mass of objects 6.2.2
TEACHER’S
• Emphasise using suitable weighing tools in estimating mass and
NOTES
NOTES
finding actual mass in g and kg.
65
6.2.3
in their daily lives. 65
TB-UNIT 6-ENG.indd 65 12/12/17 1:14 PM