Y4 Equivalent Fractions - Qwizdom ppt
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The document discusses equivalent fractions and strategies for determining if fractions are equivalent. It explains that two fractions are equivalent if they represent the same amount or value. The key strategy taught is that for two fractions to be equivalent, whatever is done to the numerator must also be done to the denominator, such as dividing or multiplying both numbers by the same amount. Examples are provided to demonstrate this approach to deciding if fractions are equal or equivalent.
Y4 Equivalent Fractions - Qwizdom ppt
- 1. YEAR 4 EQUIVALENT FRACTIONS
- 2. Fractions Lesson 3 Understanding equivalent fractions Type your name and send:
- 3. These numbers are called fractions 1 2 3 15 5 6 2 3 4 7 12 22
- 4. Today’s lesson looks at Equivalent fractions 3 4 6 8
- 5. WALT : to understand equivalent fractions and decide if fractions are equal 3 4 6 8
- 6. In the word equivalent there is the root word equal 3 4 6 8
- 7. Fractions which are said to be equivalent are equal to each other. 3 4 6 8
- 8. For example 1 2 2 4
- 9. So if you were given 2 quarters of a cake and your friend was given half a cake would you both have the same amount? 1 2 2 4
- 10. Yes! These fractions are equal. 1 2 2 4 These are equivalent fractions.
- 11. Can you tell if the following fractions are equal? Are they equivalent fractions ? 1 2 3 6
- 12. Yes these fractions are equal. They are equivalent fractions . 1 2 3 6
- 13. Are they equivalent fractions ? 2 3 4 6
- 14. Yes they are equivalent fractions . 2 3 4 6
- 15. Are they equivalent fractions ? 1 4 3 12
- 16. Yes they are equivalent fractions . 1 4 3 12
- 17. Are they equivalent fractions ? 1 3 2 5
- 18. No, they are not equal . They are not equivalent fractions . 1 3 2 5
- 19. Here are some equivalent fractions. Can you work out a strategy for deciding whether they are equal? 1 4 2 8
- 20. Here are some equivalent fractions. Can you work out a strategy for deciding whether they are equal? 2 5 4 10
- 21. Here are some equivalent fractions. Can you work out a strategy for deciding whether they are equal? 1 3 3 9
- 22. Use thinking time to discuss. 3 12 1 4
- 23. Use thinking time to discuss. 1 2 5 10
- 24. What ideas have you come up with? 1 2 5 10
- 25. Explain your strategy to the class. 1 2 5 10
- 26. There is a relationship between the fractions using dividing and multiplying. 1 4 5 20
- 27. What ever you do to the top number . . You must do to the bottom number. 1 4 5 20
- 28. What ever you do to the top number . . You must do to the bottom number. 1 5 5 20 divide by 5 divide by 5
- 29. What ever you do to the top number . . You must do to the bottom number. 1 2 2 4 divide by 2 divide by 2
- 30. What ever you do to the top number . . You must do to the bottom number. 1 4 3 12 divide by 3 divide by 3
- 31. What ever you do to the top number . . You must do to the bottom number. 1 5 4 20 divide by 4 divide by 4
- 32. What ever you do to the top number . . You must do to the bottom number. 1 4 2 8 divide by 2 divide by 2
- 33. What ever you do to the top number . . You must do to the bottom number. 9 15 3 5 multiply by 3 multiply by 3
- 34. What ever you do to the top number . . You must do to the bottom number. 4 18 2 9 multiply by 2 multiply by 2
- 35. What is the missing number? 2 10 1 5 Click for answer
- 36. What is the missing number? 2 4 4 8 Click for answer
- 37. What is the missing number? 4 5 32 40 Click for answer
- 38. Sometimes you might need to work out equivalent fractions in three steps . 6 8 48 64 3 4 Divide by 8 Divide by 8 Divide by 2 Divide by 2
- 39. Sometimes you might need to work out equivalent fractions in three steps . 6 10 48 80 3 ? Divide by 8 Divide by 8 Divide by 2 Divide by 2 What is the missing number? Click for answer 5
- 40. Sometimes you might need to work out equivalent fractions in three steps . 6 10 48 80 3 ? Divide by 8 Divide by 8 Divide by 2 Divide by 2 What is the missing number? Click for answer
- 41. LO: To revise work equivalent fractions I understand these ideas fully. I have some understanding but I need more practice. I don’t understand these ideas at all and need to work again on this unit of work. A B C
- 42. End of slide show