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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?

New Resources

  • seo tool
  • Building Trapezoids with Set Areas
  • Classifying Triangles
  • Focus and Directrix
  • Superellipse

Discover Resources

  • Finding Halves with Unit Squares
  • Step 5
  • Triangular, oblong and square numbers
  • त्रिभुज के विभिन्न केंद्रों(लम्बकेंद्र, केन्द्रक, परिकेन्द्र, अन्तःकेन्द्र) की अवधारणा को समझना
  • belajar set

Discover Topics

  • Straight Lines
  • Translation
  • Median Value
  • Percentages
  • Intersection
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