Pentagon Tessellation August 17, 2017 angles curiosity +1 notice wonder nrich symmetry wodb angles curiosity notice wonder nrich symmetry wodb angles curiosity notice wonder nrich symmetry wodb
L Triominoes August 10, 2017 conjectures creativity +1 dynamic geometry nrich proof square numbers conjectures creativity dynamic geometry nrich proof square numbers conjectures creativity dynamic geometry nrich proof square numbers
Hyperbolic Paraboloid August 07, 2017 architecture +0 creativity architecture creativity architecture creativity
Tangrams 1 August 01, 2017 angles area dynamic geometry + tangrams angles area dynamic geometry tangrams angles area dynamic geometry tangrams