MSS1/E2.5 Read, estimate, measure and compare length using common non-standard and standard units (e.g. metre, paces, cms).
(a) understand that non-standard units are not agreed measures and can therefore vary
(b) understand that standard measures are fixed
(c) know that metres and cms are metric units of length, and have an idea of their size relative to familiar things
(d) recognise and write metre and centimetre in full, and abbreviated to m, cm
(e) know that 1m = 100cm
(f) understand metre and cm divisions on simple scales
(g) know how to use a ruler to draw and measure lines to the nearest cm.