Recent posts View all
Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions
Find out more Download brochure

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!
IB Approved Workshops
Physics
IB DP Category 1

Paris, France, 13 - 15 November 2026

Find out more
Physics: A focus on the experimental programme
IB DP Category 3

Paris, France, 19 - 21 February 2027

Find out more
Physics
IB DP Category 2

Berlin, Germany, 26 - 28 February 2027

Find out more
Virtual Think-Ins
Focus On: IB Teaching – A Practical Guide for Teachers new to the IB

20 November 2026

Find out more

Find all InThinking events at
inthinking.net

Animated Sombrero

My first year classes are doing Introduction to waves activity which involves building a wave simulation in Geogebra. I thought I'd refresh my skills by trying to build a 2D version. I did it by using a sequence in a sequence to define a grid of points, a sin function gives the oscillation in the y component. To get the circular wave the phase of the oscillation is dependent on the distance from the centre which is calculated using Pythagoras. Lost?

Here is the code:

Sequence[Sequence[(a, b, sin(f t - sqrt(a² + b²))), a, -10, 10, 1], b, -10, 10, 1]

Tags: GeoGebra, waves

Help