Measurement - Length, Mass, Time · B3 Mathematics

Lesson notes

Learning Objectives

Indicator: B3.3.3.3.3 - Relate the number of seconds to a minute, minutes to an hour and days to a month in a problem-solving context

By the end of the lesson, learners can:

State the relationships between seconds, minutes, hours, days, weeks, months and years (60 seconds = 1 minute, 60 minutes = 1 hour, 24 hours = 1 day, 7 days = 1 week, 52 weeks = 1 year, 12 months = 1 year).
Convert between seconds and minutes, minutes and hours, and days and months using multiplication or division.
Solve simple word problems involving time relationships in everyday situations.
Justify their answers when solving time problems by explaining the steps they used.
Work collaboratively in pairs or small groups to verify time conversion answers and correct any errors.

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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: B3.3.3.3.3 - Relate the number of seconds to a minute, minutes to an hour and days to a month in a problem-solving context
Suggested placement: Term 3, Week 10 (Week 34 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.72
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 1-3), 2019, p. 72
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Develop understanding of the relationship between seconds, minutes, hours, days and months. Ask learners to say the rhyme on units of time (in the box)
60 seconds one minute;
60 minutes one hour;
24 hours one day;
7 days one week
52 weeks one year;
12 months one year
E.g. 2. Solving problems requiring an understanding of number of seconds in a minute, the number of minutes in an hour and the number of days in a month The six lines from "60 seconds one minute" to "12 months one year" are printed in a box beside E.g. 1 and E.g. 2; in the text layer they interleave with the exemplars line by line. They are pulled out here into their own lines.