Operations with Decimals and Percentages Unit Plan – Year 5 and Year 6
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Operations with Decimals and Percentages Unit Plan – Year 5 and Year 6


11 x Lessons


This Mathematics unit covers a range of concepts relating to decimals and percentages; specifically calculations.

It consists of 11 lessons of approximately 60 minutes duration.

The sequence of lessons and suggested time frames should be regarded as a guide only; teachers should pace lessons in accordance with the individual learning needs of their class.

An assessment task for monitoring student understanding of the unit objectives is included and will require an additional lesson.

Lessons

Lesson 1 60 minutes

Exploring Decimal Place Value

A 60 minute lesson in which students will revise decimal place value and compare, order and represent decimals.

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Lesson 2 60 minutes

Adding and Subtracting Decimals

A 60 minute lesson in which students will add and subtract decimals.

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Lesson 3 60 minutes

Multiplying and Dividing by Powers of 10

A 60 minute lesson in which students will multiply and divide decimals by powers of 10.

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Lesson 4 60 minutes

Multiplying Decimals by Whole Numbers

A 60 minute lesson in which students will multiply decimals by whole numbers.

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Lesson 5 60 minutes

Dividing Decimals by Whole Numbers

A 60 minute lesson in which students will divide decimals by whole numbers.

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Lesson 6 60 minutes

Fraction, Decimal and Percentage Equivalence

A 60 minute lesson in which students will make connections between equivalent fractions, decimals and percentages.

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Lesson 7 60 minutes

Calculating Discounts

A 60 minute lesson in which students will calculate percentage discounts of 10%, 25% and 50%.

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Lesson 8 60 minutes

Calculating Sale Price

A 60 minute lesson in which students will calculate sale price using percentage discounts of 10%, 25% and 50%.

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Lesson 9 60 minutes

Maths Investigation - Prepare to Party (1)

A 60 minute lesson in which students will apply knowledge of decimals and percentages to a real-world context.

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Lesson 10 60 minutes

Maths Investigation - Prepare to Party (2)

A 60 minute lesson in which students will apply knowledge of decimals and percentages to a real-world context.

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Lesson 11 60 minutes

Maths Investigation - Prepare to Party (3)

A 60 minute lesson in which students will apply knowledge of decimals and percentages to a real-world context.

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Lesson 12 (Assessment) 60 minutes

Operations with Decimals and Percentages Assessment - Year 5 and Year 6

A 60 minute assessment designed to assess student learning.

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Australian Curriculum alignment

Mathematics > Year 6 > Number and Algebra > Money and financial mathematics > ACMNA132
Investigate and calculate percentage discounts of 10%, 25% and 50% on sale items, with and without digital technologies

Mathematics > Year 5 > Number and Algebra > Fractions and decimals > ACMNA105
Compare, order and represent decimals

Mathematics > Year 6 > Number and Algebra > Fractions and decimals > ACMNA128
Add and subtract decimals, with and without digital technologies, and use estimation and rounding to check the reasonableness of answers

Mathematics > Year 6 > Number and Algebra > Fractions and decimals > ACMNA129
Multiply decimals by whole numbers and perform divisions by non-zero whole numbers where the results are terminating decimals, with and without digital technologies

Mathematics > Year 6 > Number and Algebra > Fractions and decimals > ACMNA130
Multiply and divide decimals by powers of 10

Mathematics > Year 6 > Number and Algebra > Fractions and decimals > ACMNA131
Make connections between equivalent fractions, decimals and percentages