Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Lesson

Outline

  1. Borom's Brain Teasers
    1. 12 men. or 13?
    2. Comparing Tables
    3. Brain Game
    4. Monty Hall problem
    5. Colours
    6. Heart Plot
    7. Mosaic art

Borom's Brain Teasers

Author:Angeleque Borom

  • 12 men. or 13?

  • Comparing Tables

  • Brain Game

  • Monty Hall problem

  • Colours

  • Heart Plot

  • Mosaic art

Next
12 men. or 13?

New Resources

  • Segment Addition Postulate (Mild Questions)
  • Modifiable Right Triangular Prism
  • Midpoint Theorem Questions: Mild
  • Right Triangle Inscribed in a Semicircle
  • Building Algebra Tile Models for Trinomials

Discover Resources

  • Rolling Square
  • Pythagoras's Theorem
  • Mroueh GeoGebra Project
  • Tina's graph of fun
  • Activity 5-3 (Altitudes & Medians)

Discover Topics

  • Conditional Probability
  • Incircle or Inscribed Circle
  • Trigonometry
  • Orthocenter
  • Geometric Mean
AboutPartnersHelp Centre
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®