|Preposition - Year 3 terminology in the proposed new curriculum|
Ask the children to make a list of the things they see on their journey and explain these are the nouns (or noun phrases if more than one word is used, e.g. the church).
Model putting a preposition with a noun/noun phrase and discuss how it informs the reader where you are while you are walking or driving.
Children can then experiment with creating their own prepositional phrases and writing each one on a strip of paper. You could order these, with children holding their phrase, so that a poem is created physically around the classroom. Children could re-order themselves to create different effects in their poem.
After this practical experience, children could develop their own poem, either listing phrases sequentially along their route to school, on a school trip, or creating an imaginary route. The latter would give chance for their phrases to be ordered to create some rhythm or rhyme in their poem.
Here's my example of a sequential journey. Not finely crafted, but it gives the idea!
One more idea! As the journey is sequential, it acts like a map and children could fairly easily learn this for performance. Different ways of performing it could also give opportunity for communicating speed of the journey to listeners.