...As easy as 1, 2, 3; or simple as do re mi, A,B,C, 1, 2, 3... See that? That there is ordering numbers. Ok, so its numbers to three, but you can stand in front of your class and boldly sing 't-t-teacher's gonna show you how to...' order numbers to 20 with this Year 1 Order Numbers resource. It's made up three questions, in two sets, that encourage ordering numbers to 20 in both ascending and descending order, as well as the use of comparison symbols. Your kids will be top of the class in no time.