I played a very simple game with the children to learn and remember the preposition words. You will need a plastic cup (preferably a transparent one) and a small toy (it should be able to fit inside the cup).
First, show the children all the different preposition words by demonstrating them yourself with the toy and the cup.
Then, ask the children to put the toy in different places using the preposition words.
If you want to extend their knowledge or think they are able to, ask the children to tell you where to put the small toy and you can 'get it wrong' a few times to see if they are paying attention!