AC9M1M03 • Year 1 Maths
Time can be described using years, months, weeks, days and hours. Events can be ordered by when they happen and how long they take.
Time can be described using years, months, weeks, days and hours. Events can be ordered by when they happen and how long they take.
Learning routine: Name unit → Order events → Describe duration → Explain sequence
The unit should fit the event.
Use before, after, next, yesterday, today and tomorrow to explain order.
Explain your thinking: Say what each part of the model represents, then explain why the answer or conclusion follows.
Describe how long events last and place them in a sensible sequence.
Would you describe a school lesson in hours or years?
Watch for this mistake: The number alone does not tell the duration. Two hours and two months are very different lengths of time.
Today is Tuesday. A game is two days later. On which day is it?
Move forward one day at a time.
Thursday: Wednesday is one day later and Thursday is two days later.
Put one day, one year and one week in order from shortest to longest.
Think about which units fit inside the others.
One day, one week, one year.
These curriculum examples extend the central model into varied contexts. They are learning contexts, not extra definitions to memorise.
naming, listing and using familiar units of time, such as hours, days, weeks, years
Try and explain: Which is a suitable unit for the time from one birthday to the next: hours or years?
Years. One birthday to the next is about one year; hours suit much shorter durations.
comparing the number of days in the months of the year and explaining how the months cycle from one year to the next
Try and explain: A calendar shows April has 30 days and May has 31. Are all months the same length? What follows December?
No. These two months already have different lengths. January follows December as the calendar cycle begins a new year.
sequencing familiar events including the representation of time with pictorial timelines
Try and explain: Place these events on a daily timeline: breakfast, bedtime, lunch. Explain the order.
Breakfast, lunch, bedtime. A timeline shows when events occur and their sequence, rather than arranging them by how enjoyable they are.
discussing events and activities and deciding whether they would take closer to an hour, a day, a week, a month or a year; for example, it takes a day for the sun to rise and fall and rise again, but it takes less than an hour for me to walk to school
Try and explain: A short film lasts about one hour and a school holiday lasts two weeks. Which duration is longer?
Two weeks is longer. Compare the units as well as the numbers; one hour is only part of a day.
investigating durations of time represented in First Nations Australians’ seasonal calendars
Cultural safety: Use a community-approved source, name the specific Nation or community where the source does, and avoid presenting diverse First Nations knowledges as one generic tradition. Follow local cultural and intellectual property protocols before inviting community participation.
Find a month, week and day on a classroom calendar.
Model: week = 7 days
Put daily events in sequence.
Model: wake → school → dinner
Choose whether an event is best measured in hours, days, weeks, months or years.
Model: movie → hours
Key idea: Time can be described using years, months, weeks, days and hours. Events can be ordered by when they happen and how long they take.
Return to the concept model if an answer is uncertain. Use the model to explain, not just to guess.
AC9M1M03: describe the duration and sequence of events using years, months, weeks, days and hours
Use the Practice Sheet for written or hands-on work, Practice for supported feedback, and Test when the student is ready to demonstrate independent mastery.
The SkillrHub lesson remains the primary learning resource. This optional video reinforces the explanation; you can complete the lesson and practice without watching.
Before you watch:
Scratch Garden — Learn the sequence of the twelve months in a year.
As you watch: Which month comes before and after your birthday month?
Load video player Loads YouTube in this lesson. See the video notice below.
Try it: Put three familiar events in calendar order. Name the month for each.
Video unavailable, inaccurate or unsuitable for this year? Report a video problem to SkillrHub by email. You can continue with the written lesson and practice resources.
Scratch Garden — Practise the seven-day sequence and talk about weekly events.
As you watch: When the list reaches Saturday, which day follows?
Load video player Loads YouTube in this lesson. See the video notice below.
Try it: Describe one event today, one tomorrow and one later this week using day names.
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Mapped skill: describe the duration and sequence of events using years, months, weeks, days and hours
These references identify matching or closely related learning. Curriculum sequence, terminology and depth vary, so teachers should use the mapped skill and lesson difficulty to confirm suitability.
| Region | Curriculum framework | Closest level or code |
|---|---|---|
| Australia | Australian Curriculum v9.0 | AC9M1M03 · Year 1 |
| Victoria | Victorian Curriculum F–10 Version 2.0 — Mathematics | VC2M1M03 · Level 1 |
| New South Wales | NSW Mathematics K–10 Syllabus (2022) | MA1-NSM-02 · Stage 1 |
| United States (USA) | Common Core State Standards for Mathematics | Grade 1 |
| Canada (Ontario) | Ontario Curriculum — Mathematics | Grade 1 |
| United Kingdom (England) | National Curriculum in England — Mathematics | Year 2, Key Stage 1 |
| India | NCERT / CBSE — Mathematics | Class 1 |
Australian Curriculum v9.0 is the canonical source for this SkillrHub lesson. Victoria and NSW entries name the closest published state codes or outcomes; international entries are planning references rather than claims of identical curricula.
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Topic reference: AC9M1M03 — Time: Years, Months, Weeks, Days and Hours
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