Adults use strategies to measure. They can compare, order and measure objects, selecting appropriate units, tools, estimates and formulas for tasks in their everyday lives.
Learners can compare and order objects according to their measurable attributes. For example, a learner can directly compare the length of two sticks to say which is longer.
Learners can use repeated standard units (such as centimetres) or nonstandard units (such as hand spans) to measure the attributes of objects.
Understanding volume
Learners develop an understanding of volume as the number of cubic units needed to fill a solid shape.
Benchmarks for metres and centimetres
Learners develop their skill at estimating the length of objects in metres and centimetres.
Understanding area
Learners develop an understanding of area as the number of square units needed to cover a shape.
Learners select and use appropriate standard units and instruments to measure length, weight, capacity and volume, angle, temperature, power and time. For example, a learner uses an electronic scale to weigh 200 grams of butter for a cooking recipe.
The appropriateness of the unit depends on the problem or task. For example, to measure weight, appropriate units may include:
Learners use their knowledge of place value and the metric system to carry out simple conversions. Examples include:
Learners use common benchmarks to select appropriate methods for estimating measurements. For example, a hand span can be used as an estimate for 20 centimetres, or a pace can be used as an estimate for 1 metre.
Time formats
Learners become familiar with expressing time in each of its three forms: analogue, 12 hour, and 24-hour digital.
Time conversions
Learners become familiar with converting from one unit of time to another.
Benchmarks for weight
Learners develop an understanding of weight and mass.
Benchmarks for capacity
Learners develop their skill at estimating the volume of containers in litres and millilitres by establishing personal benchmarks.
Benchmarks for angle
Learners develop an understanding of what angles are and how to measure them.
Learners can calculate the area and perimeter of rectangles, triangles and circles from measurements of length.
Learners can convert units within measurement systems.
Fixed perimetre rectangles and area
Learners develop an understanding of how to calculate the area and perimeter of rectangles.
Fixed area rectangles and perimeters
Connecting tonnes, kilograms and grams
Learners develop an understanding of the relative size of tonnes, kilograms and grams and the conversions between the units.
Connecting kilometres, metres, centimetres and millimetres
Learners develop an understanding of the relative size of metres, centimetres and millimetres and conversions between the units.
Circumferences
Learners develop an understanding of how to calculate the circumference of circles and cylinders.
Areas of circles
Learners develop an understanding of how to calculate the area of a circle.
Learners can use appropriate units, tools and formulas to measure the surface areas and volumes of prisms, including cylinders. For example if a prism has side lengths of 4 centimetres, 6 centimetres and 7 centimetres, it has a volume of 4 x 6 x 7 = 168 cubic centimetres.
Learners can convert between measurement systems.
Calculating volumes of regular 3D objects
Learners develop an understanding of how to calculate the volume of regular 3D objects.