This set of 4 posters (each 700 x 500 mm) includes problems on Xian traffic, a pyramid of Turkish delight, egg timers and an Islamic tile with knot patterns. Try to work out which way traffic goes around a roundabout from taillight patterns. Can you measure 2 minutes with a 3-4-5 minute egg timer? When does a knot pattern go under and when over? Besides the mathematics, they are a great start to cross-curricular activities or just for looking at!