Paper Boats

I have started a new French class, and I have to memorise this poem.

Tombe la pluie
Arrose les jardins
Et la rue et les chiens

Tombe la pluie
Et fais sonner tes gouttes
sur les toits et les routes
Tombe la pluie le long des caniveaux
Et change les papiers en tout petits bateax
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I think that the last two lines mean.
The rain falls along the gutters And changes all the papers into small boats

When it rains like mad around here the force of the water can be witnessed at the castle in Fougeres.