Measurement - Length, Mass, Time · B3 Mathematics

Lesson notes

Learning Objectives

Indicator: B3.3.3.3.1 - Use arbitrary units to measure time taken to complete simple events.

By the end of the lesson, learners can:

Identify personal referents for minutes and hours (for example, the time it takes to sing the national anthem, or the time spent in one class period).
Classify activities as those that can or cannot be accomplished in minutes, hours, days, months, or years.
Use a watch or clock to measure and record the time taken (in minutes and seconds) to complete simple events like walking around the school building.
Determine the duration of an event when given the start time and finish time.
Complete a table showing the duration of simple sporting events using start and finish times.

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Curriculum details

Strand: Geometry and Measurement (Strand 3)
Sub-strand: Measurement - Length, Mass, Time (3.3)
Content standard: B3.3.3.3 - Demonstrate an understanding of time taken by events in days, weeks and months
Indicator: B3.3.3.3.1 - Use arbitrary units to measure time taken to complete simple events.
Suggested placement: Term 3, Week 8 (Week 32 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

exemplars - p.69
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 1-3), 2019, p. 69
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Identify personal referents for minutes or hours (i.e., 10 minutes is about the time it takes to...or 3 hours is about the time it takes to...)
E.g. 2. Identify activities that can or cannot be accomplished in minutes, hours, days, months and years
E.g. 3. Ask learners to time, using watches or clock and tell how much time (in minute and seconds) it would take to
i. Walk round the school building;
ii. Walk to the nearest house to the school;
iii. Walk to the nearest toilet; etc.
E.g. 4. Give learners the start and end times of events and ask to determine the duration of the event.
E.g. 5. Complete the table
Sporting event Start Finish How long?
Ampe 10.30 a.m. 10.45 a.m.
Netball 9.00 a.m. 10.00 a.m.
Basket ball 2.00 p.m. 3.50 p.m.
Football 3.30 p.m. 5.00 p.m. Printed p.70 repeats this indicator and all five of its exemplars with small wording changes ("Identify" for "Identifying", roman numerals iv-vi for i-iii) and a different competencies cell. Only the printed p.69 version is transcribed; a reviewer should decide which printing is authoritative.