Search
strands.number-sense.h1

Number Sense

Understanding numbers, their relationships and numerical reasoning

strands.algebra.h1

Algebra

Using symbols to solve equations and express patterns

strands.geometry.h1

Geometry

Studying shapes, sizes and spatial relationships in mathematics

strands.measurement.h1

Measurement

Quantifying and comparing attributes like length, weight and volume

strands.operations.h1

Operations

Performing mathematical operations like addition, subtraction, division

strands.statistics-probability.h1

Probability and Statistics

Analyzing uncertainty and likelihood of events and outcomes

Community Resources
Get started with our Resources
GeoGebra

Calculator Suite

Explore functions, solve equations, construct geometric shapes

GeoGebra Graphing

Graphing Calculator

Visualize equations and functions with interactive graphs and plots

GeoGebra Geometry

Geometry

Explore geometric concepts and constructions in a dynamic environment

GeoGebra 3D Calculator

3D Calculator

Graph functions and perform calculations in 3D

GeoGebra Scientific Calculator

Scientific Calculator

Perform calculations with fractions, statistics and exponential functions

GeoGebra Notes

Notes

Explore our online note taking app with interactive graphs, slides, images and much more

App Downloads
Get started with the GeoGebra Apps
strands.number-sense.h1

Number Sense

Understanding numbers, their relationships and numerical reasoning

strands.algebra.h1

Algebra

Using symbols to solve equations and express patterns

strands.geometry.h1

Geometry

Studying shapes, sizes and spatial relationships in mathematics

strands.measurement.h1

Measurement

Quantifying and comparing attributes like length, weight and volume

strands.operations.h1

Operations

Performing mathematical operations like addition, subtraction, division

strands.statistics-probability.h1

Probability and Statistics

Analyzing uncertainty and likelihood of events and outcomes

Community Resources
Get started with our Resources
GeoGebra

Calculator Suite

Explore functions, solve equations, construct geometric shapes

GeoGebra Graphing

Graphing Calculator

Visualize equations and functions with interactive graphs and plots

GeoGebra Geometry

Geometry

Explore geometric concepts and constructions in a dynamic environment

GeoGebra 3D Calculator

3D Calculator

Graph functions and perform calculations in 3D

GeoGebra Scientific Calculator

Scientific Calculator

Perform calculations with fractions, statistics and exponential functions

GeoGebra Notes

Notes

Explore our online note taking app with interactive graphs, slides, images and much more

App Downloads
Get started with the GeoGebra Apps

Tim Regan

  • Resources
  • Favorites
  • People
  • Unit Circle and Sine Graph

    Activity

    Tim Regan

  • Standing Wave

    Activity

    Tim Regan

  • Angles in a triangle sum to 180 degrees

    Activity

    Tim Regan

  • Moon phases

    Activity

    Tim Regan

  • Angles in any triangle always sum to 180°

    Activity

    Tim Regan

  • Internal angles in any triangle sum to 180°

    Activity

    Tim Regan

  • Converging lens

    Activity

    Tim Regan

  • Irish face

    Activity

    Tim Regan

  • Convex mirror ray diagram

    Activity

    Tim Regan

  • Travelling wave interference

    Activity

    Tim Regan

  • Concave mirror images

    Activity

    Tim Regan

  • Concave Mirror

    Activity

    Tim Regan

  • Refraction in Glass

    Activity

    Tim Regan

  • Wave Interference

    Activity

    Tim Regan

  • Mixing Light Colours

    Activity

    Tim Regan

  • Wave Reflection

    Activity

    Tim Regan

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®