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Skill 1.3

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• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• Did we change the area at all as we cut up the square?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
• How do we turn 2/9 into /36?\n
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• Discuss with a friend or neighbor or the inside of your own head what fraction is shaded here. (Lots of kids suggest 1/9.)\n
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• Discuss with a friend or neighbor or the inside of your own head what fraction is shaded here.\n
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• Can I divide anything out of the top and bottom?\n
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• Transcript

• 1. Skill 1.3 - Add and Subtract Fractions 1/19/2011 Do Now1) 7 - (-7) You only have 3 minutes so get started2) (4)(7)3) 40 / -2
• 2. Skill 1.3 - Add and Subtract Fractions 1/19/2011 Do Now1) 7 - (-7) You only have 3 minutes so get started2) (4)(7)3) 40 / -2
• 3. Mike
• 4. MikeChip
• 5. MikeChip Chancz
• 6. Mike DewayneChip Chancz
• 7. Mike DewayneChip Chancz
• 8. Mike DewayneChip Chancz
• 9. Mike Dewayne RavenChip Chancz
• 10. Mike Dewayne RavenChip Chancz
• 11. Mike Dewayne RavenChip Chancz
• 12. How do we get Olivia a fair amount?
• 13. How do we get Olivia a fair amount? Lets use Math!
• 14. 14
• 15. 15
• 16. 120
• 17. ==
• 18. =14 =
• 19. =1 14 5 =
• 20. - = -1 14 5 =
• 21. - = -1 1 14 5 = 20
• 22. Fractions
• 23. Fractions
• 24. Fractions
• 25. Fractions
• 26. Fractions 1 4 €
• 27. Fractions 1 4 €
• 28. Fractions 1 4 = 4 16 €€
• 29. Fractions 1 4 = 4 16 €€
• 30. Fractions 1 4 = = 4 16 64 €€ €
• 31. Fractions 1 4 16 = = 4 16 64 € €€ €
• 32. Fractions
• 33. Fractions
• 34. Fractions
• 35. Fractions 1 9 €
• 36. Fractions
• 37. Fractions 2 9 €
• 38. Fractions 2 9 €
• 39. Fractions 2 9 €
• 40. Fractions 2 9 2 1 + = 9 36 € €
• 41. Fractions 2 9 2 1 + = 9 36 € 8 1 + = 36 36 €
• 42. Fractions 2 9 2 1 + = 9 36 € 8 1 9 + = 36 36 36 €
• 43. Fractions 2 9 2 1 + = 9 36 € 8 1 9 1 + = = 36 36 36 4 €
• 44. Fractions
• 45. Fractions
• 46. Fractions
• 47. Fractions
• 48. Fractions
• 49. What fraction is shaded here?
• 50. What fraction is shaded here?
• 51. Here, I’ll make it easier
• 52. Now, what fraction is shaded here? 1 8 €
• 53. Now, what fraction is shaded here? 1 8 €
• 54. Is that easier? 1 8 €
• 55. Now, let us solve a math problem 1 8 €
• 56. Now, let us solve a math problem 1 8 €
• 57. Now, let us solve a math problem 1 8 €
• 58. Now, let us solve a math problem 1 3 + = 8 16 €€
• 59. Now, let us solve a math problem 1 3 + = 8 16 2 3 + = 16 16 €€ €
• 60. Now, let us solve a math problem 1 3 + = 8 16 2 3 5 + = 16 16 16 €€ € €
• 61. More Fractions
• 62. More Fractions
• 63. More Fractions
• 64. More Fractions
• 65. Fractions - Same Denominator
• 66. Fractions - Same Denominator 1. 4 2 + = 7 7 €
• 67. Fractions - Same Denominator 1. 4 2 6 + = 7 7 7 € €
• 68. Fractions - Same Denominator 1. 4 2 6 + = 7 7 7 4 2 2. + = € 9 9 € €
• 69. Fractions - Same Denominator 1. 4 2 6 + = 7 7 7 4 2 2. + = € 9 9 € 7 5 3. + = € 10 10 €
• 70. Fractions - Same Denominator 1. 4 2 6 + = 7 7 7 4 2 2. + = € 9 9 € 7 5 3. + = € 10 10 7 5 4. − = € 10 10
• 71. Fractions - Same Denominator 1. 4 2 6 + = 7 7 7 4 2 2. + = € 9 9 € 7 5 3. + = € 10 10 7 5 4. − = € 10 10
• 72. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 2. + = € 9 9 € € 7 5 3. + = € 10 10 7 5 4. − = € 10 10
• 73. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 2 12 2. + = 6. − = € 9 9 € € 13 13 7 5 3. + = € 10 10 € 7 5 4. − = € 10 10
• 74. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 2 12 2. + = 6. − = € 9 9 € € 13 13 7 5 14 4 3. + = 7. − = € 10 10 € 50 50 7 5 4. − = € 10 10 €
• 75. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 2 12 2. + = 6. − = € 9 9 € € 13 13 7 5 14 4 3. + = 7. − = € 10 10 € 50 50 7 5 12 13 4. − = 8. + = € 10 10 € 25 25
• 76. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 12 2. + = 6. − = € 9 9 € 9 € 13 13 7 5 14 4 3. + = 7. − = € 10 10 € € 50 50 7 5 12 13 4. − = 8. + = € 10 10 € 25 25
• 77. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13 13 7 5 14 4 3. + = 7. − = € 10 10 € € € 50 50 7 5 12 13 4. − = 8. + = € 10 10 € 25 25
• 78. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13 13 7 5 12 14 4 3. + = 7. − = € 10 10 10 € € € 50 50 7 5 12 13 4. − = 8. + = € 10 10 € € 25 25
• 79. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13 13 7 5 12 6 14 4 3. + = 7. − = € 10 10 10 € € 5€ 50 50 7 5 12 13 4. − = 8. + = € 10 10 € € € 25 25
• 80. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13 13 7 5 12 6 14 4 3. + = 7. − = € 10 10 10 € € 5€ 50 50 7 5 2 12 13 4. − = 8. + = € 10 10 10 € € € 25 25
• 81. Fractions - Same Denominator 1. 4 2 6 5. 2 12 + = + = 7 7 7 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13 13 7 5 12 6 14 4 3. + = 7. − = € 10 10 10 € € 5€ 50 50 7 5 2 1 12 13 4. − = 8. + = € 10 10 10 € € 5€ 25 25
• 82. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 7 5 12 6 14 4 3. + = 7. − = € 10 10 10 € € 5€ 50 50 7 5 2 1 12 13 4. − = 8. + = € 10 10 10 € € 5€ 25 25
• 83. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 −10 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 13 7 5 12 6 14 4 3. + = 7. − = € 10 10 10 € € 5€ 50 50 € 7 5 2 1 12 13 4. − = 8. + = € 10 10 10 € € 5€ 25 25
• 84. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 −10 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 13 7 5 12 6 14 4 10 3. + = 7. − = € 10 10 10 € € 5€ 50 50 € 50 7 5 2 1 12 13 4. − = 8. + = € 10 10 10 € € 5€ 25 25 €
• 85. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 −10 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 13 7 5 12 6 14 4 10 1 3. + = 7. − = € 10 10 10 € € 5€ 50 50 € 50 5 7 5 2 1 12 13 4. − = 8. + = € 10 10 10 € € 5€ 25 25 € €
• 86. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 −10 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 13 7 5 12 6 14 4 10 1 3. + = 7. − = € 10 10 10 € € 5€ 50 50 € 50 5 7 5 2 1 12 13 25 4. − = 8. + = € 10 10 10 € € 5€ 25 25 € 25 €
• 87. Fractions - Same Denominator 1. 4 2 6 5. 2 12 14 + = + = 7 7 7 13 13 13 4 2 6 2 2 12 −10 2. + = 6. − = € 9 9 € 9 3€ 13€ 13 13 7 5 12 6 14 4 10 1 3. + = 7. − = € 10 10 10 € € 5€ 50 50 € 50 5 7 5 2 1 12 13 25 4. − = 8. + = 1 € 10 10 10 € € 5€ 25 25 € 25 €
• 88. Fractions - Different Denominators 1 2 - = 7 9
• 89. Fractions - Different Denominators 1 x9 2 - = 7 x9 9
• 90. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7
• 91. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7 9 - 63
• 92. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7 9 14 - 63 63
• 93. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7 9 14 - = 63 63
• 94. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7 9 14 -5 - = 63 63 63
• 95. Fractions - Different Denominators 1 x9 2 x7 - = 7 x9 9 x7 9 14 -5 - = 63 63 63
• 96. Fractions - Different Denominators 7 2 - = 9 6
• 97. Fractions - Different Denominators 7 x2 2 - = 9 x2 6
• 98. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3
• 99. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 - 18
• 100. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 6 - 18 18
• 101. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 6 8 - = 18 18 18
• 102. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 6 8 ÷2 - = 18 18 18 ÷ 2
• 103. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 6 8 ÷2 4 - = = 18 18 18 ÷ 2 9
• 104. Fractions - Different Denominators 7 x2 2 x3 - = 9 x2 6 x3 14 6 8 ÷2 4 - = = 18 18 18 ÷ 2 9
• 105. Independent Work Time
• 106. Independent Work Time