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Concepts of unit 10

HELP!. No need to fear! Super-Jack is here to help you with unit 10. Concepts of unit 10. With Super-Jack!. Concepts Include:. Circles Algebraic Expressions Pan Balances Volume Converting Units Of measure. Circles. Parts of a Circle and What They Are. Parts of a Circle:

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Concepts of unit 10

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  1. HELP! No needto fear! Super-Jack is here to help you with unit 10 Concepts of unit 10 With Super-Jack!

  2. Concepts Include: • Circles • Algebraic Expressions • Pan Balances • Volume • Converting Units Of measure

  3. Circles

  4. Partsof a Circle and What They Are • Parts of a Circle: • Circumference • Diameter • Radius • Area • What they Are: • Circumference: the distance around the circle • Diameter: the distance across the circle • Radius: the distance from the edge to the center of the circle • Area: the amount of surface space inside the circle

  5. Formulas • Circumference of a circle: π xdiameter • Area of a circle: π x radius2 Handy Hint: the radius is always half the diameter.

  6. Practice Problems • What is the area of this circle? • 7.065 ft2 • What is the circumference? • 9.42 ft • If this circle was three time larger what would the new radius? • 4.5 ft 3ft

  7. Algebraic Expressions 4 + x = 23 24 – 13 = b

  8. What Are Algebraic Expressions? • Basically, number models with a missing number • The variable, or lowercase letter represents the missing number or numbers. Algebra is just the missing number problems from second grade. 12 – s = 7 Variable

  9. Practice Problems Practice makes perfect. • 11 x b = 132 • b = 12 • 12 – j = -13 • j = 25 • 30 x c = 2,700,150 • c = 90,005

  10. Pan Balances M M M M C C

  11. How to Operate Pan Balances • Use logical thinking • If there are two pan balances, use both pan balances • If there is two of the same item, cross them both out The cross-out method 1 block = ? balls

  12. Practice Problems • If the circle weighs 1, what does the block weigh? • 0.5 • If the block weighs 19.5, what does the circle weigh? • 39

  13. Volume

  14. How to Find Volume • Multiply the area of the base, by the height • Or, length x width x height L x W x H L x W x H L x W x H

  15. PracticeProblems • What is the height of this figure? • 20 m • If the volume was 480 m3, what would the height be? • 10 m 4 m 12 m Volume= 960 m3

  16. Converting Units of Measure

  17. Conversion Charts

  18. Practice Problems • How many quarts are in a peck? • 8 quarts • How many yards are in a furlong? • 220 • How many pints in a barrel? • 225 • How many inches in 3 meters? • 118.1

  19. HELP! Super-Jack is needed else where, but whenever you need help call Super-Jack!

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