GALLERY Brilliant work done by my students. Beautiful group theory notes by grade 8 girl. Highlight of an incredible combinatorics test paper. Grade 7 The layout and organization of this number theory computation is a model of mathematical handwriting beauty. Grade 8 girl. Proof of Ptolemy's second theorem on cyclic quadrilaterals. Grade 8. Ruler-compass construction of huge polygon by grade 6 boy. Visualization of 4D hypercube by grade 7 girl.