Ordering is an excellent concept to assist children in recognising number patterns while it encourages them to use higher order thinking when using the right activity within the classroom. There are various activities that students can learn from. One of the activities I did on my practicum is below. The students enjoyed this a lot, and I found they understood the concept quite well. A number line of cards is also a good introduction to ordering for students that find the concept a little difficult to grasp.
Classroom activity:
Practice by neatening up your friends. Measure their heights, then place them in ascending order of height. Try it again, but use their weights.