# GM2-2: Partition and/or combine like measures and communicate them, using numbers and units.

Elaboration on this Achievement Objective

This means students will perform and communicate calculations involving like measures. Like measures involve the same units for the same attribute. This allows the result of joining or separating units to be anticipated using additive number strategies. For example, a box has a volume of 36 cubes. If a 3 by 4 cube layer is put in the empty box then there will be space for 36 – 12 = 24 more cubes. At Level Two students should be able to use numbers and common symbols to communicate measurement results, for example my lunchbox holds 60 cubes. I took 13 minutes to walk home. My pencil is 14 cm long. I weigh 26 kg.

Teaching resources for this Achievement Objective

The purpose of this activity is to engage students in using a non-standard unit to give a measurement involving fractions.

Rich learning activities

Number and Algebra

Level Two

This is a level 2 measurement strand activity from the Figure It Out series. A PDF of the student activity is included.

match equivalent measurement units

Figure It Out activities

Geometry and Measurement

Level Two

This is an activity based on the picture book Diary of a Worm

Students will be able to use the vocabulary associated with calendars to accurately talk about the duration and time between events. Students will be able to read a calendar and express the time in standard units (day, week, month, year).

Picture book activities

Geometry and Measurement

Level Two

The purpose of this activity is to engage the students to use proportional reasoning and their knowledge of volume to solve a problem involving fractions.

Rich learning activities

Number and Algebra

Level Two

The purpose of this activity is to engage students in using standard measuring tools in a non-standard manner.

Rich learning activities

Geometry and Measurement

Level Two

This is an activity based on the picture book In a Minute

Students will be able to accurately estimate the duration of time using the units of minute and second. Students will be able to measure the duration of events using stopwatches and other timers.

Picture book activities

Geometry and Measurement

Level Two

In this unit we will explore the idea of having benchmarks of 1 kilogram and 1/2 kilogram or 500 grams to aid in estimating the mass of given objects.

Use objects of 1kg mass to estimate the mass of other objects. Discuss the need for having and using standard measures of mass. Make sensible estimates about the mass of given objects. Explain the meaning of metric prefix terminology (e.g kilo).

Units of Work

Geometry and Measurement

Level Two

This is a level 2 measurement strand activity from the Figure It Out series. A PDF of the student activity is included.

estimate and measure lengths in metres

Figure It Out activities

Geometry and Measurement

Level Two

This unit uses the context of making paper planes to develop understanding of metre and centimetre measures. Students investigate a variety of paper airplanes designs, experiment to see which planes fly the furthest, and decide winners by measuring and comparing results.

Estimate using metres amd centimetres. Measure to the nearest metre and centimetre.

Units of Work

Geometry and Measurement

Level Two

This unit is about partitioning whole numbers. It focuses on partitioning numbers to “make a ten” or a decade when adding whole numbers, for example 8 + 6 can be solved as (8 + 2) + 4. The unit uses measurement as a context.

Partition numbers less than 10. Know and use "teen" facts. Solve addition problems by making a ten, or making a decade. Solve addition problems involving measurements.

Units of Work

Number and Algebra

Level Two

In this unit students build on previous experiences with litres and millilitres. Work is carried out in the context of planning a party with students measuring volumes accurately as part of the planning process.

Estimate volume using litres and millilitres. Accurately measure volume using litres and millilitres.

Units of Work

Geometry and Measurement

Level Two

This is an activity based on the picture book Pepetuna

Students will be able to track and record the time involved in different two side-by-side narratives using the units of year and season. Students will be able to represent time on a linear scale.

Picture book activities

Geometry and Measurement

Level Two

In this unit students participate in a series of scavenger hunts to develop their own personal benchmarks for measures of 1cm, 10cm, 50cm and one metre. An understanding of the relationship between centimetres and metres is also developed.

find objects that they estimate to be a 1cm, 10cm, 50cm and one metre long measure lengths of approximately one metre to the nearest cm

Units of Work

Geometry and Measurement

Level Two

This is a level 2 measurement strand activity from the Figure It Out series. A PDF of the student activity is included.

measure an area in square metres

Figure It Out activities

Geometry and Measurement

Level Two

The purpose of this activity is to engage students in applying their number knowledge to compare measurements of the same type but given in different formats.

Rich learning activities

Geometry and Measurement

Level Two

measure lengths in centimetres

Figure It Out activities

Geometry and Measurement

Level Two

The purpose of this activity is to engage students in applying their number knowledge to solve a measurement problem.

Rich learning activities

Geometry and Measurement

Level Two

use scales to measure weight

Figure It Out activities

Geometry and Measurement

Level Two