Stage: 1 Challenge Level: 
Debbie who is 7 and goes to Applegrove Primary School tells us that the odd one out is the middle square because it has two of the designs on it.
Visualising. Rotations. Practical Activity. Working systematically. Interactivities. Reflections. Compound transformations. Tangram. Mixed triangles. Investigations.
Published December 2001,January 2002,June 2002.
Copyright © 2007. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk