Last updated 02 October 2012, created 09 June 2012, viewed 1,088
Each of the shapes in this activity have been carefully constructed so that there are some properties that it ALWAYS has, some properties that it can SOMETIMES have and others that it NEVER has. Your job is push, pull and stretch the shapes any which way you can so you can figure out what these prop More…erties are and which shape is which. Once you have done that you are challenged to make your own 'Indestructible Quadrilaterals' using dynamic geometry! A further activity asks you to think about which quadrilaterals are subsets of which other ones.