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

Math 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

Math 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

Math 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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Common Core State Standards alignment

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand the place value system > CCSS.MATH.CONTENT.5.NBT.A.1
Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand the place value system > CCSS.MATH.CONTENT.5.NBT.A.2
Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand the place value system > CCSS.MATH.CONTENT.5.NBT.A.3
Read, write, and compare decimals to thousandths.

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand the place value system > CCSS.MATH.CONTENT.5.NBT.A.4
Use place value understanding to round decimals to any place.

Grade 5 > Standards for Mathematical Practice > Number & Operations in Base Ten > Perform operations with multi-digit whole numbers and with decimals to hundredths > CCSS.MATH.CONTENT.5.NBT.B.7
Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

Grade 6 > Standards for Mathematical Practice > Ratios & Proportional Relationships > Understand ratio concepts and use ratio reasoning to solve problems > CCSS.MATH.CONTENT.6.RP.A.3 > CCSS.MATH.CONTENT.6.RP.A.3.C
Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.