JHS3 Mathematics · Term 1, Week 8

Number Operations

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Number Operations (1.2)
Content standard: B9.1.2.4 - Demonstrate understanding of surds as real numbers, the process of adding and subtracting of surds as well as determining (using a calculator) the approximate square root of a number that is not a perfect square.
Indicator: B9.1.2.4.2 - Explain the identities/rules of surds
Suggested placement: Term 1, Week 8 (Week 8 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, Common Core Programme (JHS1-JHS3), 2023, p. 170
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

Wide black-and-white mathematical teaching visual is organised as a table with horizontal divisions, vertical... — A wide black-and-white mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions, open white space around the main marks. Visible labels, values, and notation include: Rule 1; Vaxb =vaxvb; Rule 2; Rule 3; b; Va=; Va; =; Rule 4; aVc‡bVc=(a‡b)Vc; Rule 5; a+bvn; Rule 6; a-bvn; X; a-bun.

Rule 1 Rule 4 √a × b = √a × √b a√c ± b√c = (a ± b)√c Rule 2 Rule 5 a √a c c a - b√n
√ = = × b √b a + b√n a + b√n a - b√n
Rule 3 Rule 6 b b √a b√a c c a + b√n = × = = ×
√a √a √a a a - b√n a - b√n a + b√n

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