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Outline

  1. Estimation Routines with GeoGebra
    1. How Many?
    2. Placing Numbers (up to 50)
    3. Fraction Guesser
    4. What's the number?
    5. Part-Whole Rectangles
    6. Broken Clock (nearest minute)
    7. Relative number sizes via area
    8. Rounding within 1000
    9. What's the angle?
    10. Slope Guesser

Estimation Routines with GeoGebra

Author:John Ulbright

  • How Many?

  • Placing Numbers (up to 50)

  • Fraction Guesser

  • What's the number?

  • Part-Whole Rectangles

  • Broken Clock (nearest minute)

  • Relative number sizes via area

  • Rounding within 1000

  • What's the angle?

  • Slope Guesser

Next
How Many?

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