We used our foam number mats for this hopscotch activity, but you can simple use chalk outside to draw numbers in blocks and play that way.
My 7 year old packed out the numbers first so that it looks like hopscotch similar to what they have at school. (The 2 and 3 should technically swop around, though).
This game is great for proprioceptive input: the sense of knowing where your body is in space. It also works on gross motor muscles(getting that body moving), balance and executive functioning skills(planning what to do with your body) too!
Hose Play(toddlers sharing) by Bambini Travel
Horsie Horsie Counting Game by Adventures and Play
(Favourite Character) Habitats by The Gingerbread House