ORBIT/GeoGebra Competition

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The 2013 competition has generated five high quality open-ended activities that support interactive teaching and allow children (age 6-10) to explore an element of mathematics for themselves.

Lesson idea. GeoGebra is a free, fun, interactive software environment that can be used with great effect to promote interactive teaching and enquiry based learning. The competition winning GeoGebra applets presented here also come with guidance notes for use in the primary classroom.

Teaching approach. The following guidance note are provided for each resource:

  • a short overview
  • brief instructions or teacher’s note (simple instructions including useful tips and recommendations)
  • list of learning objectives
  • description of the underlying pedagogical rationale/teaching approach
Resource details
Title ORBIT/GeoGebra Competion 2013
Topic Visualisation

Format / structure

links to wiki page containing embedded applet, guidance notes (wiki and .doc versions) and, .ggb file

Age of students / grade

KS1,  KS2

Files and resources to view and download

The winner of the competition was Anthony Or with his pair of complementary applets on perimeter and area. Both applets have in-app spreadsheets for students to record their investigation results. These are excellent applets for visualising area and perimeter and address common misconceptions held by primary school students in a fun and interactive way.

Variety of perimeter with fixed area.png

Variety of areas with fixed perimeter.png

In second place was Irina Boyadzhiev with her applet on fractions. This is a great app that requires students to place fractions on a number line. It is easy to use, differentiated (has 3 levels of differentiation i.e. no hint, hint 1 and hint 2), interactive and pedagogically useful as it allows for the visualisation of fractions on a number line:

Positioning fractions on the numberline.png

The third place entrant John Golden produced a fun interactive game, that can be used by small groups of students, involving two different ways of representing number :

Number and representation game.png

Irina Boyadzhiev was highly commended for her entry on perimeter. This clear and easy to use enquiry based activity includes a great visualisation for understanding what is meant by perimeter and how to calculate it:

Perimeter of a rectangle.png


This was a joint competition between The University of Cambridge Faculty of Education ORBIT project and GeoGebra, run in conjunction with the Cambridge Centre for Innovation in Technological Education (CCITE). On behalf of ORBIT, GeoGebra and CCITE we would like to thank all of the entrants and in particular, the winners, for their interest in the competition and for sharing their excellent Geogebra applets with us.