AC9M1M01_E1
Use a piece of string to indirectly compare the length of several objects, decide which will fit within a space and describe the order using shortest, short, longer and longest.
Measurement • AC9M1M01
Help Year 1 students compare, order and describe objects and events using length, mass, capacity and duration. These hands-on activities and printable worksheets use string, balance scales, containers, sand timers and real-world measurement investigations aligned with Australian Curriculum AC9M1M01.
Measurement comparison helps students describe how objects and events are alike and different. In Year 1, students compare and order familiar objects using the attributes of length, mass, capacity and duration.
Students begin with direct comparison, such as placing two objects side by side, before using indirect comparison tools such as string, balance scales, containers and sand timers.
They use comparative language including shortest, longer, longest, lightest, heavier, heaviest, holds the least, holds the most, shorter time and longer time.
Students explain how they made their decisions and communicate the evidence they used to order objects and events.
These activities support the Australian Curriculum Version 9.0 content descriptor AC9M1M01 and its associated elaborations.
Compare directly and indirectly and order objects and events using attributes of length, mass, capacity and duration, communicating reasoning.
Use a piece of string to indirectly compare the length of several objects, decide which will fit within a space and describe the order using shortest, short, longer and longest.
Order the mass of three or more objects using hefting and balance scales, and explain the order using lightest, light, heavier and heaviest.
Pour sand, rice or water between containers to compare and order the capacity of three or more containers using holds the most, holds the least and in-between language.
Create sand timers from everyday or recycled materials and compare them to order the duration of time required for the sand to run through.
Investigate situations where First Nations Australians estimate, compare and communicate measurements, including seasons, animal tracks, water-carrying vessels and rock holes.
Students will learn to:
I can compare objects by length.
I can use string to compare lengths.
I can order objects from shortest to longest.
I can compare objects by mass.
I can use a balance scale.
I can order objects from lightest to heaviest.
I can compare how much containers hold.
I can compare how long events take.
I can use measurement words correctly.
I can explain how I decided.
Compare tall narrow containers with short wide containers by transferring the same material between them.
Align one end of each object before making a direct length comparison.
Include large light objects and small heavy objects so students learn that size and mass are different attributes.
Demonstrate that the heavier side moves down and the lighter side rises.
Use the same material and transfer the full amount carefully so the comparison remains fair.
Explain that duration means how long an event takes, not the time shown on a clock.
Place two classroom objects side by side with one end aligned. Students decide which is shorter and which is longer.
Repeat with several object pairs and record the comparison.
Curriculum connection: AC9M1M01
Use one piece of string to compare the length of objects that cannot easily be moved or placed together.
Students order the objects from shortest to longest.
Curriculum connection: AC9M1M01_E1
Students use string to test whether books, boxes or classroom objects will fit inside a chosen space.
They explain how the string helped them decide.
Curriculum connection: AC9M1M01_E1
Students hold one object in each hand and predict which is heavier before checking with a balance scale.
Compare the prediction with the scale result.
Curriculum connection: AC9M1M01_E2
Compare three or more objects with a balance scale and place them in order from lightest to heaviest.
Students explain what happened on the scale.
Curriculum connection: AC9M1M01_E2
Fill one container with rice, sand or water and pour it into another container to compare capacity.
Students describe which holds more and which holds less.
Curriculum connection: AC9M1M01_E3
Compare three or more containers and order them from the least capacity to the greatest capacity.
Discuss why appearance alone may be misleading.
Curriculum connection: AC9M1M01_E3
Create simple sand timers using clear recycled containers and compare how long the sand takes to pass through.
Order the timers from shortest to longest duration.
Curriculum connection: AC9M1M01_E4
Sort familiar activities such as blinking, washing hands, eating lunch and sleeping by how long they take.
Students justify the order using duration language.
Curriculum connection: AC9M1M01
Explore authoritative resources about seasonal knowledge, animal tracks, traditional water-carrying vessels and rock holes.
Use respectful, community-approved sources and focus on how measurement knowledge supports decision-making.
Curriculum connection: AC9M1M01_E5
_____ is longer than _____.
_____ is the shortest object.
_____ is the longest object.
I used string because _____.
_____ is lighter than _____.
_____ is the heaviest object.
The balance moved down because _____.
This container holds more than _____.
This container holds the least because _____.
_____ took a shorter time than _____.
_____ had the longest duration.
I ordered them by _____.
I know because _____.
Observe whether the student can:
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Families can compare household objects such as spoons, books, shoes, containers, toys and food packages using length, mass, capacity and duration.
Use a piece of string, two hands for hefting, safe containers and familiar household events to make measurement practical.
Ask questions such as: