# Comparison and Ordering of Fractions

Subject :Â

Mathematics

Term :

First Term

Week:

Week 6

Class :

Primary 3/ Basic 3

Topic : Comparison and Ordering of Fractions

Previous lesson :Â

The pupils have previous knowledge of how to add up numbers that are either two digits or three digits without regrouping.

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Behavioural objectives :

At the end of the lesson, the pupils should be able to

• Compare two or more Fractions and say which one is bigger than the other
• Order or rank or arrange Fractions in the order of magnitutude or sizes
• Use pebbles, counters, abacus or other learning materials to represent fractional parts of whole before comparing or ranking

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Instructional Materials :

• Wall charts
• Pictures
• Related Online Video
• Flash Cards
• Lagos state scheme of work on Mathematics
• TextBooks
• Workbooks
• Pebbles
• Abacus

Methods of Teaching :

• ClassÂ Discussion
• Group Discussion
• Explanation
• Role Modelling
• Role Delegation

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Reference Materials :

• Scheme of Work
• Online Information
• Textbooks
• Workbooks
• 9 Year Basic Education Curriculum
• Workbooks

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Content :

What is a fraction?Â

A fraction is a part of a whole number.

Fraction is used to show how many division or part of a whole that we have.

Half or 1/2 shows that one part out of two parts has been cut out as fraction

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One â€“ thirds or 1/3 shows thiat one part out of three parts has been cut out as fraction

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One â€“ quarters or 1/4 shows that one part out of four parts has been cut out.

To compare two or more Fractions, one needs to make sure that the Fractions have the same denominators.

Denominators are the figures that are down in Fractions while numerators are the numbers that are written up in Fractions.

Equivalent Fractions are Fractions with equal values. These Fractions are equal to each other eg 1= 2/2 =4/4 = 7/7 = 9/9

Comparison of FractionsÂ

1. Which fraction is bigger 1/4 (one over four) or 1/3 (one over three)

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You will multiply 1/4 and 1/3 by their common LCM which is 12

1/4 times 12 is equal to 3

1/3 times 12 is equal to 4

Therefore the bigger of the two Fractions is 1/3 because itâ€™s numerical value is 4

Examole 2.

Which fraction is bigger between 1/5 and 1/2

Solution

You will multiply the two Fractions by their common LCM which is 10 ðŸ”Ÿ

1/5 times 10 is equal to 2

1/2 times 10 is equal to 5

The bigger of the two is 5 whose fractional value is 1/2

Presentation

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The topic is presented step by step

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Step 1:

The class teacher revises the previous topics

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Step 2.

He introduces the new topic

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Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise

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Conclusion

The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she does the necessary corrections when and whereÂ  the needs arise.

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Evaluation

• Which of the following Fractions is the bigger

1/8 or 1/4

1/3 or 1/9

1/3 or 1/8

1/2 or 1/7

1/6 or 1/3

1/5 or 1/10

1/5 or 1/3

1/5 or 1/8

Assignment
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