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Fractions Are Fun! Third Grade Early Childhood Math Fractions.

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Presentation on theme: "Fractions Are Fun! Third Grade Early Childhood Math Fractions."— Presentation transcript:

1 Fractions Are Fun! Third Grade Early Childhood Math Fractions

2 Lesson Objectives Students should be able too: – Add fractions together – Put fractions in order from least to greatest and greatest to least – Simplify fractions

3 Pre-Assessment Activity Use an emoticon to describe how you feel about fractions… Now… Raise your hand and tell me what you know about fractions? What is a fraction? Do you know any real life examples of fractions?

4 Introduction to the Topic What is a fraction? – A ratio of algebraic quantities that are similarly expressed – a/b – Part/Whole https://www.youtube.com/watch?v=7YuRbZz 2O54 https://www.youtube.com/watch?v=7YuRbZz 2O54

5 Introduction to the Topic Use your microphone and give me some examples of fractions?

6 Introduction to the Topic Use your microphone and give me some examples of fractions? – Pizza – Pie – Hershey bar – Puzzle pieces – Measuring cups

7 Introduction to the Topic 1/1 = one whole = 1 1/2 = half of a whole = 0.50 1/3 = one third of a hole = 0.66 1/4 = one fourth of a whole = 0.25 If this makes sense give me a green check, if it does not give me the red X.

8 Introduction to the Topic 1 2 The numerator is the top part of your fraction The denominator is the whole of your fraction Part/Whole Numerator Denominator

9 Introduction to the Topic How do I simplify a fraction? – 5/10 = 1/2 What are the common factors of 5 and 10? Both 5 and 10 have the common factor 5 Take the numerator and divide by 5 Take the denominator and divide by 5 You now have your simplified answer

10 Practice Slides Name this fraction:

11 Practice Slides (answers) Name this fraction: One1/21/4

12 Practice Slides Use your pen tool to draw me 1/2 of a cake Use your pen tool to show me 3/4 of a pizza

13 Practice Slides Adding fractions – When adding fractions you add fractions with a like denominator – Ex) 1/3 + 2/3 = 3/3 which is 1 – Add 3/4 + 1/4 – Add 4/10 + 5/10

14 Practice Slides (answers) Adding fractions – When adding fractions you add fractions with a like denominator – Ex) 1/3 + 2/3 = 3/3 which is 1 – Add 3/4 + 1/4 = 4/4 which is 1 – Add 4/10 + 5/10 = 9/10

15 Practice Slides Arrange the fractions in order from smallest to largest – 1/2, 1, 1/4, 3/4, 1/3

16 Practice Slides (answers) Arrange the fractions in order from smallest to largest – 1/2, 1, 1/4, 3/4, 1/3 – 1/4, 1/2, 1/3, 3/4, 1

17 Practice Slides Arrange the fractions from largest to smallest – 2, 2/4, 2/3, 1/4, 3/4

18 Practice Slides (answers) Arrange the fractions from largest to smallest – 2, 2/4, 2/3, 1/4, 3/4 – 2, 3/4, 2/3, 2/4 (1/2), 1/4

19 Practice Slides Simplify these factions – 3/6 – 4/2 – 8/12 – 2/2 – 3/9

20 Practice Slides (answers) Simplify these factions – 3/6 = 1/2 – 4/2 = 2 – 8/12 =2/3 – 2/2 = 1 – 3/9 = 1/3 Bonus work! – Use your pointer tool to point to the largest simplified fraction

21 Post Assessment Activity Use your chat box to answer the following questions: – What is a fraction? – How do I simplify 12/24? – What is 1/3 + 1/3? – Which fraction is the largest? Which is the smallest? 1/2, 1/4, 1/3

22 Post Assessment Activity (answers) What is a fraction? – Part/Whole How do I simplify 12/24? – 1/2… both numbers are divisible by 12 What is 1/3 + 1/3? – 2/3 Which fraction is the largest? Which is the smallest? – 1/2, 1/4, 1/3 Largest = 1/3 Smallest = 1/4

23 Extension Activity Come up with a list of at least 5 different ways you use fractions in you everyday life. What emoticon describes how you feel about fractions after todays lesson?

24 Congratulations you have now survived fractions!


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