Search
Google Classroom
GeoGebraGeoGebra Classroom

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

  • רישום חופשי
  • Pythagoras fractal tree: Step 3
  • Continuity at a Point
  • Cup Modeling Project (V2): Building Surfaces of Revolution
  • גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

  • Utilization of GeoGebra at the tertiary education
  • Reflection 4 (solution)
  • Exercise 2
  • Inscribed Angles
  • MODULE 6

Discover Topics

  • Probability
  • Rational Numbers
  • Vectors 3D (Three-Dimensional)
  • Cuboid
  • Sequences and Series
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2025 GeoGebra®