12 3-10 circle graphs
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12 3-10 circle graphs

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  • How many students drank water for breakfast?How many drank soda for breakfast?
  • What fraction of the total votes did winter receive?What is the least popular season?
  • What fraction of the total votes did winter receive?What is the least popular season?
  • Number of families with 1 car is about how many times the number of families with 2 cars?How many fewer families have 2 cards than have 3?

12 3-10 circle graphs 12 3-10 circle graphs Presentation Transcript

  • Data Collection - Day 4
    12/3/10
    EQ: How do I read circle graphs?
  • Which statements are true?
    Diagonals are shorter than the sides
    Diagonals meet at right angles.
    Diagonals are not parallel to any side.
  • Homework
    Check yesterday’s homework
    Collect or stickers
    New homework
    Discuss problems to solve.
  • Angle Review
    A rhombus has 1 interior angle of 45 degrees. What are the other 3 angles?
    45, 135, 135
  • Angle Review
    You designed an isosceles triangle flag. One interior angle is 40 degrees. What are the possibilities for the others?
    40, 100
    70, 70
  • Best Graph for
    Comparing ?
    Bar/Picto–
    Change over time?
    Line Graph
    Finding median, mode, range?
    Stem & Leaf
  • Circle Graphs
    Best graph for
    Understanding parts of a whole
    Parts of circle graph are called wedges.
  • Percents & Decimals
    30% = .30
    75% = .75
    90% = .90
    125% = 1.25
  • Helpful? How?
    30% of 250 students like ice cream. How many is that?
    250 x .30 = 75
    75% of 250 students likes tacos. How many is that
    250 x .75 = 187.5 OR 188
  • Percents & Fractions
    30% = 30/100 = 3/10
    75% = 75/100 = 3/4
    90% = 90/100 = 9/10
    125% = 125/100 = 1 1/4
  • Helpful? How?
    30% = ice cream.
    20% = Pie.
    50% = bananas.
    What fraction liked bananas?
    50/100 = 1/2
  • Parts of the Graph
  • Parts of the Graph
  • Parts of the Graph
  • Parts of the Graph
  • Parts of the Graph
  • Circle Graphs
    School has 91 students.
  • Circle Graphs
  • Circle Graphs
    93 students surveyed.
  • Circle Graphs
    75 families surveyed.
  • EQ:
    How do I read circle graphs?
  • Practice:
    Page 447-448 #5-14