B5 Mathematics · Term 1 Week 1: Counting, Representation & Cardinality

Lesson notes

Learning Objectives

Indicator: B5.1.1.1.2

By the end of the lesson, learners can:

Read aloud 7-digit numbers up to 1,000,000 in figures correctly, using the correct place value names (millions, hundred-thousands, ten-thousands, etc.).
Write numbers up to 1,000,000 in words, placing commas and spaces correctly (e.g., 462,318 as “four hundred and sixty-two thousand, three hundred and eighteen”).
Convert numbers written in words into figures (e.g., “seven hundred and five thousand, two hundred and nine” becomes 705,209).
Expand 7-digit numbers into their expanded form using place value, such as 2,524,513 = 2,000,000 + 500,000 + 20,000 + 4,000 + 500 + 10 + 3.
Generate 7-digit numbers using a number wheel or similar game and state the number created from the place value rings.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Counting, Representation & Cardinality (1.1)
Content standard: B5.1.1.1 - Demonstrate an understanding of quantities and place value for multi-digit numerals up to 1000,000
Indicator: B5.1.1.1.2 - Read and write numbers in figures and in words up to 1000,000
Suggested placement: Term 1, Week 1 (Week 1 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.
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 4-6), 2019, p. 56
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1 Play the place value number wheel game: Use the million number wheel to generate 7-digit numbers and represent the number generated on a place value frame. Throw a number of pebbles (or stones) onto the number wheel, identify the number of pebbles landing in each place value ring, and state the number generated in the wheel (i.e. 2 landed in the ten-thousands' ring making the number twenty- thousand or 20,000)

Figure from the b5 mathematics curriculum, printed page 56

E.g. 2. Ask pupils to write given numbers on the expanded form of the number : 2,524,513=1000,000× 2 +100,000× 5 + 10,000 × 2+1000 × 4+ 100× 5 + 10× 1+ 1× 3 = 2,000,000 + 500,000 + 20,000 + 4,000 + 500 + 10 + 3