Ewch â chamera neu lechen y tu allan ac archwilio cymesuredd yn yr amgylchedd o'ch cwmpas. Dail ffotograffau, siapiau corff, pryfed / creaduriaid a strwythurau o waith dyn. Pan fyddwch chi'n ôl y tu mewn, mae'n categoreiddio'r cymesureddau rydych chi wedi'u darganfod.
Take a camera or tablet outside and explore symmetry in the environment around you. Photograph leaves, body shapes, insects/creatures and man made structures. When you're back inside, categories the symmetries you have found.