YEAR 3 MATHS FOCUS
MEASUREMENT AND GEOMETRY
Length
Learning Experiences
Length
LENGTH
OUTCOME
A student:
MA2-9MG: measures, records, compares and estimates lengths, distances and perimeters in metres, centimetres and millimetres, and measures, compares and records temperatures
Teaching Points | In Stage 2, measurement experiences enable students to develop an understanding of the size of the metre, centimetre and millimetre, to estimate and measure using these units, and to select the appropriate unit and measuring device. |
| When recording measurements, a space should be left between the number and the abbreviated unit, eg 3 cm, not 3cm. |
| LANGUAGE | Students should be able to communicate using the following language: length, distance, metre, centimetre, millimetre, ruler, measure, estimate, handspan. |
Expectations of Attainment
Measure, order and compare objects using familiar metric units of length (ACMMG061) | measure lengths and distances using metres and centimetres |
| record lengths and distances using metres and centimetres, e.g. 1 m 25 cm | |
| compare and order lengths and distances using metres and centimetres | |
| estimate lengths and distances using metres and centimetres and check by measuring | |
| – explain strategies used to estimate lengths and distances, such as by referring to a known length, eg ‘My handspan is 10 cm and my desk is 8 handspans long, so my desk is about 80 cm long’ (Communicating, Problem Solving) | |
| recognise the need for a formal unit smaller than the centimetre to measure length | |
| recognise that there are 10 millimetres in one centimetre, ie 10 millimetres = 1 centimetre | |
| use the millimetre as a unit to measure lengths to the nearest millimetre, using a ruler | |
| – describe how a length or distance was measured (Communicating) | |
| record lengths using the abbreviation for millimetres (mm), eg 5 cm 3 mm or 53 mm | |
| estimate lengths to the nearest millimetre and check by measuring |
Learning Experiences
to be added