Number Operations · JHS2 Mathematics

Lesson notes

Learning Objectives

Indicator: B8.1.2.1.1 - Multiply and divide by power of 10 including decimals and the benchmark fractions

By the end of the lesson, learners can:

Recall multiplication facts up to 144 and their related division facts quickly and accurately.
State the decimal and percentage equivalents of the benchmark fractions (1/2, 1/4, 3/4, 1/5, 1/10, etc.).
Multiply a decimal number by 10, 100, and 1000 by moving the decimal point to the right the correct number of places.
Divide a decimal number by 10, 100, and 1000 by moving the decimal point to the left the correct number of places.
Apply multiplication and division by powers of 10 to solve problems involving benchmark fractions.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Number Operations (1.2)
Content standard: B8.1.2.1 - Apply mental mathematics strategies and number properties used to solve problems
Indicator: B8.1.2.1.1 - Multiply and divide by power of 10 including decimals and the benchmark fractions
Suggested placement: Term 1, Week 5 (Week 5 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. 94
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g.1. Recall multiplication facts up to 144 and related division facts.
E.g.2. Recall decimal names of the benchmark fractions converted to decimals or percentages (and vice versa).
E.g. 3. Determine a product when a decimal number is a multiple of 10, 100, 1000, 1 , 1 , 1 , etc.
10 100 1000